Aroma Diffuser Inspection Checklist | Mist Output, Water Leakage, Timer Function

An aroma diffuser inspection should confirm that sampled units produce stable mist, hold water without leaking, follow the stated timer settings, and shut down correctly when required. We also check the water tank, housing, controls, power connection, accessories, labels, barcode, retail packaging, and shipping cartons.

Our team compares the inspected goods with the approved specification, approved sample, instruction manual, packaging artwork, purchase order, and buyer inspection instructions. The required mist output, timer tolerance, water capacity, temperature limit, and other acceptance criteria should come from these approved documents. We do not create unsupported limits during the inspection.

The final checklist depends on the product design. Standard checks cover workmanship, mist performance, leakage, controls, labels, and packaging. Timer checks apply to models with timer functions. USB, battery, remote-control, lighting, heating, overturn-protection, and electrical tests are included only when they apply to the inspected model and are part of the approved scope.

Mist Output

Mist output should not be judged only by whether visible vapor appears. We check whether the unit starts correctly, follows the selected mist mode, maintains output during operation, and avoids spraying large water droplets onto the housing or nearby surface.

The report should identify the water level, power source, selected mode, operating time, and actual result. This gives the buyer more useful evidence than a general statement such as “mist function passed.”

Mist Start

The diffuser should first be assembled according to the instruction manual. The tank is filled to the stated water level using the type of water required by the approved instructions. Essential oil or fragrance should not be added unless the product is designed for it and the inspection requirement includes that condition.

Before starting the unit, our team checks:

Product model, color, plug type, and power method
Water tank installation and lid position
Maximum and minimum water-level marks
Atomizing area and mist outlet condition
Adapter, plug, USB cable, or battery condition
Rated voltage, current, and power information
Buttons, switches, indicators, and control symbols
Accessories against the approved packing list

The outside of the tank and housing should be dried before the product is switched on. This prevents water spilled during filling from being mistaken for product leakage.

The diffuser is powered using the supplied or approved power source. It should start without repeated button pressing, cable adjustment, shaking, or movement of the water tank. When the product has a designed startup delay, the actual result should be compared with the instruction manual or approved sample.

The following findings should be recorded:

No mist after startup
Unusually long or inconsistent startup delay
Mist starts only after the product is shaken or moved
Mist stops when the cable or connector is lightly handled
The indicator shows operation while no mist is produced
The unit resets or switches off without a valid reason
The lid or cover blocks the mist outlet
Water spits from the outlet instead of forming fine mist
Large droplets collect around the outlet
Mist escapes through an unintended housing joint

When several samples are compared, the test conditions should remain consistent. Water level, power source, selected mode, product position, and test location should not be changed without recording the change. Strong airflow from a fan or air-conditioning outlet may alter the visible mist direction and make sample comparison unreliable.

Each function claimed for the inspected model should be selected and reviewed. Full-duration testing is required only for modes included in the approved scope and available inspection time.

Mode	What We Check
Continuous mist	Mist continues without random stopping or switching modes.
Intermittent mist	The mist-on and mist-off cycle follows the approved instructions.
Low mist	The output is visibly lower than high mode but remains stable.
High mist	The output increases without producing large water droplets.
Mist with light	Mist and light work together without one function cancelling the other.
Mist without light	Mist continues when the light is switched off.
Light-only mode	The light works without unintended mist output.

A diffuser may pass continuous operation but fail intermittent mode. It may also work with the light on but stop when the light is switched off. The report should show the result for each tested mode rather than combine all functions into one pass result.

Mist Consistency

Stable mist means that the diffuser follows the selected operating mode throughout the observed test period. It does not mean that every visible cloud must look identical. Small visual changes can occur because of water level, air movement, and product design.

During continuous operation, our team checks whether:

Mist continues without an unexplained stop
The unit remains in the selected mode
The output does not become clearly weaker after a short period
The mist outlet remains open and correctly aligned
Large droplets are not sprayed onto the nearby surface
Water does not collect around the outlet and run down the housing
Mist does not escape from an unintended joint
The indicator remains consistent with the actual mode
Samples of the same model do not show unexplained large differences

During intermittent operation, the product should repeatedly follow the stated mist-on and mist-off sequence. A unit should not pass only because it stops and starts. The observed cycle must match the instruction manual, specification, or approved sample.

We observe the product at startup, during operation, and before the end of the test. This helps identify units that initially produce normal mist but later become weak, unstable, or inactive.

Common findings include:

Mist becomes weaker during the test
Output stops and restarts without a programmed cycle
Mist direction changes because the cover moves out of position
Water droplets fall back into the outlet
Visible splashing occurs inside the tank
Mist continues after the unit has been switched off
High and low modes produce no clear difference
The indicator and actual mist mode do not match

These findings may indicate a problem with the atomizer, airflow, water path, power input, assembly, or control program. Unless an approved internal check confirms the cause, our report records the observed condition rather than assigning an unverified component-level cause.

Sample 6 produced continuous mist for approximately two minutes. The output then became intermittent although continuous mode remained selected. The power indicator stayed on, and the condition appeared again after the unit was refilled and restarted.

When the buyer provides a numerical mist-output requirement, quantitative measurement may be included. The buyer should provide or approve the operating time, water quantity, selected mode, measurement method, equipment, and acceptance limit.

A difference in tank water level or product weight before and after operation should only be used when that method has been approved for the product. Filling spills, water left on the housing, and residual water inside the unit can affect the result. Without an approved numerical method, mist output is checked against the instruction manual, specification, and approved sample.

The diffuser should also be switched off and restarted. Where a repeated-operation check is included, we review:

Delayed or failed restart
Failure after timer shutdown
Water pooling around the atomizing area
Controls becoming less responsive
Indicator and mist mode becoming unsynchronized
Water entering the electrical base

Adjustable outlets, lids, and other moving parts should remain usable after repeated operation. The UTS working instruction assigns a 20-cycle fatigue test to adjustable parts when applicable. This value should only be used when the test applies to the model and is included in the approved scope.

Noise and Heat

An aroma diffuser normally produces some operating sound, but it should not have strong rattling, scraping, irregular buzzing, clicking, or vibration. Noise should be compared across sampled units and, where available, against the approved sample.

We listen during startup, continuous operation, intermittent operation, mode changes, timer shutdown, and restart. The product should stand firmly on a flat surface and should not wobble or slide during normal operation.

Common findings include:

Loose internal parts
Poor fit between the water tank and base
Contact between a fan and another component
Strong atomizer vibration transferred to the housing
Missing or uneven bottom pads
A deformed base
A loose lid or tank
Internal debris moving during operation

Temperature rise should be measured when included in the inspection scope. The housing, water tank, USB connection, adapter, cable, plug, controls, and nearby surface should not show abnormal heat, softening, discoloration, smell, or deformation.

The report should record the measurement point, starting temperature, final temperature, operating time, selected mode, actual value, and the source of the acceptance limit. We do not apply one temperature limit to every aroma diffuser.

The test should be stopped and reported if the unit shows smoke, sparking, melting, burning smell, severe overheating, damaged insulation, exposed live parts, or water entering an electrical connection.

Depending on the construction and intended use, an atomizing product may also need assessment against applicable electrical-safety requirements. IEC 60335-2-98:2023 covers household electric humidifiers, including appliances that atomize water, but the actual standard and test program must be confirmed for the specific product and destination market.^[1]

Supporting workmanship checks cover the housing, tank, atomizing area, controls, USB connection, cable, joints, screws, surface finish, and accessible edges. Cracks, poor alignment, loose parts, sharp edges, damaged insulation, or weak connections can affect mist output, leakage, noise, and safety.

Additional checks may include output voltage, charging current, four-hour endurance operation, two-hour additional overcharge exposure after the stated charging period, short-circuit protection, power consumption, electrical strength, grounding continuity, cable pulling, and internal component review. These are not default tests for every diffuser. They require suitable equipment, an approved method, and a product design to which the test applies.

Water Leakage

A leakage check should identify more than obvious tank cracks. Water may escape through the tank wall, lid, seal, mist outlet, valve, housing joint, control area, or bottom cover.

We check the product after filling, before startup, during operation, after shutdown, and after the tank or lid is removed and installed again. Recording the stage and first wet location helps the buyer understand the seriousness of the defect.

Tank and Seal

The empty tank should be inspected before water is added. Cracks, deformation, poor bonding, missing seals, and foreign material are easier to identify when the product is dry.

Our team checks:

Tank wall and bottom
Water-fill opening
Maximum and minimum water-level marks
Lid and top cover
Silicone seal or gasket
Tank-to-base connection
Atomizing area
Valve, plug, or cap where applicable
Housing seams and bonded joints
Surface below the unit

The tank should be clean and free from plastic fragments, metal particles, grease, dust, and other production residue. Foreign material near a seal or atomizing plate may affect both mist performance and leakage.

The seal should be present, correctly seated, and free from cuts, twisting, thinning, dirt, or poor bonding. A seal may look acceptable while the tank is empty but move out of position when the lid is closed or the tank is installed.

The lid should close without excessive force, large gaps, rocking, misalignment, blockage of the mist outlet, or pressure that deforms the tank.

Tank capacity should be measured when the approved specification provides a stated value. The UTS working instruction assigns this measurement to Special Inspection Level S-2. The report should record the claimed capacity, actual finding, sample number, method, and fill line used.

After filling, the tank and housing should be dried. The diffuser can then be placed on clean absorbent paper or another dry surface that makes a small leak easier to identify.

Condition	How We Distinguish It
Filling spill	Water falls onto the housing during filling and does not return after the surface is dried.
Condensation	Moisture forms mainly around the mist outlet and does not continuously flow from a tank joint or bottom cover.
Product leakage	Water returns after drying and can be traced to the tank, seal, valve, joint, control area, or bottom of the unit.

Visible water should not automatically be described as leakage. At the same time, repeated dripping should not be dismissed as normal condensation without locating its source.

Clean tissue may be placed around a suspected joint after the surface has been dried. The first wet point can help show whether the water comes from the tank, seal, valve, mist outlet, or housing connection.

Useful leakage evidence includes:

Sample number
Water level
Product position
Time when water first appeared
Location of the first wet mark
Whether the amount continued to increase
Whether the water returned after drying
Whether it reached a power, USB, battery, or control area
Whether the condition could be repeated

Water leakage from the container is normally treated as a major functional defect under the UTS working instruction. If the water creates a confirmed electrical or other safety hazard, the classification may be escalated according to the approved critical-defect definition.

Running Leakage

A tank may remain dry during a static check but begin to leak after the diffuser is switched on. Vibration, internal water movement, heat, and water-level change can expose a defect that is not visible before operation.

The assembled product should be operated at the approved water level and mist mode. We check all accessible sides without moving the unit outside its normal operating position.

Attention should be given to:

The joint between the tank and base
The mist outlet and lid edge
The button and indicator area
The USB or power connection
The bottom cover and product feet
A removable tank valve where applicable
A drainage or air channel where applicable

Check Stage	Main Purpose
After filling, before startup	Find cracks, poor seals, and static leakage.
Near the maximum water line	Find overflow and upper-joint problems.
During operation	Find leakage caused by vibration or internal water movement.
After timer shutdown	Find water that settles into joints after mist stops.
After refilling and reassembly	Find leakage caused by poor tank, lid, valve, or seal positioning.

The product should not be filled beyond its stated maximum line unless the buyer requests a defined misuse test. Normal inspection should first confirm performance under the approved instructions.

The running test should record water that:

Collects under the product
Runs through a housing joint
Reaches the power cable or connector
Appears inside the control area
Drips repeatedly from the mist outlet
Sprays outside the intended mist direction
Enters the USB port or battery compartment
Appears after the tank is removed
Remains trapped inside the housing

For a removable tank, the product should be checked after the tank is filled, installed, operated, removed, reinstalled, and operated again. A connection that begins leaking after the second installation should be recorded even when the first operating test passes.

Products with valves, caps, plugs, or drainage parts should be checked for correct fit and retention. A valve or cap that becomes loose during use may cause serious leakage after the initial inspection period.

For products designed to use essential oil, the test should follow the instruction manual. Oil should not be placed in a water-only tank. An unsuitable liquid may damage plastic, seals, coatings, or the atomizing plate and make the result unreliable.

After operation, the diffuser should be switched off and checked again. Some leakage becomes visible only after mist stops and water settles inside the base.

Where the approved scope includes an internal construction check, the unit may be opened after operation to look for water entry, loose wiring, damaged insulation, incorrect components, or internal movement. The report should state that the unit was opened and include photo evidence.

Tilt and Handling

Leakage and stability are related but separate checks. A leakage check reviews the product during filling, operation, shutdown, and reassembly. A stability check reviews whether the product overturns under a defined condition.

The UTS aroma diffuser working instruction specifies a 10° inclined plane for appliances without heating elements and a 15° inclined plane for appliances with heating elements. The product should not overturn in its normal position of use. These are working-instruction conditions and should not be presented as universal limits for every diffuser or destination market.

The stability check should not automatically be described as a tilt-leakage test. Testing whether the unit overturns is different from turning a filled diffuser onto its side and checking whether water escapes.

A filled product should only be tilted, rotated, or turned beyond its normal operating position when:

The instruction manual includes that condition
The product claims spill resistance
The buyer requests a specific misuse test
An approved test method defines the angle, position, and duration

Normal handling checks may include lifting the filled unit carefully, moving it between flat surfaces, removing and replacing the lid, reinstalling the tank, checking the cable during movement, and emptying the tank according to the instructions.

The unit should not leak during normal handling described by the manual. This does not mean that the product must remain leak-free when turned upside down unless that claim or test condition has been approved.

During stability review, we consider the base width, product height, water level, cable direction, bottom pads, uneven feet, housing deformation, tank position, and movement during operation.

If the product includes an overturn switch or safety interlock, that function should be checked separately. The working instruction treats a failed safety interlock or overturn switch as a critical defect, while ordinary container leakage and unstable operation are normally major defects.

Timer Function

A timer check should confirm the selected setting, indicator response, operating period, shutdown action, and restart behavior. Pressing the timer button and seeing a light change does not prove that the timer works for the stated period.

Three functions should be kept separate:

Timer: The product stops or changes operation after a selected period.
Mist cycle: The product follows a repeated mist-on and mist-off pattern.
Safety shutoff: The product stops because of low water, overturning, abnormal temperature, or another protection condition.

A working timer does not prove that low-water protection works. A low-water shutoff does not prove that a one-hour timer is accurate. Each claimed function should be checked separately.

Timer Accuracy

Before testing, our team lists every timer-related function claimed on the product, instruction manual, packaging artwork, specification, or approved sample.

Depending on the model, these may include:

One-hour, three-hour, or six-hour operation
Continuous operation
Intermittent mist
Automatic low-water shutoff
Delayed start
Light timer
Separate mist and light controls
Timer memory
Remote-control timer

Only functions claimed for the inspected model should be tested. A feature shown in another model’s manual or packaging should not be accepted as evidence for the inspected unit.

For each timer mode, we check whether:

The correct setting can be selected.
The indicator matches the selected setting.
The mist continues or cycles as required.
The unit stops or changes mode at the expected time.
The mist and light respond according to the approved design.
The indicator changes correctly after shutdown.
The unit can be restarted normally.

The actual operating time should be compared with the approved tolerance. We do not apply one timer tolerance to every aroma diffuser.

Selected Mode	Expected Action	Result to Record
1 hour	Mist stops or changes after the stated period.	Actual shutdown time and final product status
3 hours	Mist stops or changes after the stated period.	Actual shutdown time and final product status
6 hours	Mist stops or changes after the stated period.	Actual shutdown time and final product status
Intermittent	Mist follows the stated on-and-off cycle.	Observed on-time, off-time, and repeated cycle
Continuous	The unit runs until manually stopped or a valid protection function activates.	Observed operation and any unexpected stop
Light timer	The light responds at the selected time.	Actual light response and whether mist is affected

Long timer settings may exceed the time available during a normal inspection day. The report should distinguish between:

A completed full-duration timer test
A setting and indicator check
An initial-operation check
A client-approved shortened method
A mode that was not fully verified

A timer should not be reported as fully verified when the complete operating period was not observed and no approved alternative method was used.

For intermittent mist, we record the mist-on period, mist-off period, repeated cycle, indicator response, and any unexpected change into another mode.

Power-interruption behavior should only be checked when relevant. Some products return to standby after power is restored, while others remember the last setting. The correct result depends on the approved product design.

Typical timer defects include:

The wrong timer setting is selected
The indicator does not match the setting
The timer stops too early
The timer continues beyond the approved limit
Continuous mode stops without a valid reason
The timer changes by itself
The timer resets when the light or mist button is pressed
The timer works once but fails after restart
Mist stops but the operating indicator remains on
The timer sequence differs from the instruction manual

A timer malfunction is normally a major defect because it affects a stated product function. Final classification should follow the approved defect list and actual effect on use.

Controls and Shutoff

Buttons, touch panels, switches, and indicators should respond correctly. We check both the control response and the actual function so that a changing indicator is not mistaken for successful operation.

Each control is checked for:

Correct symbol and position
Smooth movement or touch response
No sticking or looseness
No double action from one press
No missed action
Correct indicator response
Correct operation after repeated use

For touch controls, the product should not require contact at one unusually precise point. It should not switch modes without contact or display a mode different from the one selected.

Where applicable, we check how timer, light, and mist controls interact:

Whether the timer remains active after changing mist output
Whether switching off the light changes the timer
Whether timer shutdown stops the correct functions
Whether the product returns to standby after shutdown
Whether restarting clears or keeps the previous setting as designed

Automatic low-water protection should be checked when claimed or included in the approved scope. The unit is operated under controlled observation until the water reaches the protection level.

The expected response may include:

Mist stops
The atomizer and fan stop
The indicator changes
The unit enters standby
An alarm sounds
The product does not restart until water is added

The report should record what actually happened. If the unit continues operating without water, the result should be compared with the approved design and safety requirement.

Remote control, rechargeable battery, overcharge protection, short-circuit protection, thermostat, and overturn-switch checks apply only to models that include those features. Electrical protection tests require suitable equipment and an approved procedure.

Accessories should also be checked because timer and power functions may depend on the supplied adapter, USB cable, remote control, battery, measuring cup, cleaning brush, spare seal, and instruction manual.

A wrong adapter may power the diffuser during a short test but still have incorrect input, output, plug, connector, or marking information. These details should be compared with the approved specification.

AQL and Report

Aroma diffuser inspections normally use random sampling rather than checking every unit in the production lot. The sample size should be selected from the actual lot size, inspection level, sampling plan, agreed AQL values, and type of test.

The UTS aroma diffuser working instruction uses General Inspection Level II for the main function and workmanship sample unless the client specifies another plan. It lists critical defects as not accepted, Major AQL 1.5, and Minor AQL 4.0.

ISO 2859-1:2026 defines acceptance-sampling plans for inspection by attributes. AQL sampling supports a lot-level decision based on inspected samples; it does not prove that every uninspected unit is defect-free.^[2]

The applicable standard version, inspection level, defect classifications, and AQL values should be written into the client-approved inspection plan. The working instruction may also use a client-approved ANSI/ASQ Z1.4 plan, but the two standards should not be described as automatically identical without checking the applicable versions and tables.

Different tests may use different sample sizes:

General function checks may use General Inspection Level II.
Assembly, output voltage, USB connection, tank capacity, atomizing, temperature rise, and other selected tests may use Special Inspection Level S-2.
S-2 does not mean that two pieces are always tested. The sample size comes from the applicable table and lot size.
Some electrical tests may apply to the full selected sample assigned to that test.
“Full sample size” should not be interpreted as 100% of the production lot unless the approved scope specifically requires a 100% inspection.
Carton size and weight may be checked on one selected carton where specified.

A Final Random Inspection is normally arranged when production is 100% complete and at least 80% packed. For new products or higher-risk orders, an Initial Production Inspection may be arranged when approximately 5%–10% has been produced. A During Production Inspection may be arranged at approximately 30%–50% completion to identify repeated defects before final packing.

The random sample should cover different cartons, pallet positions, colors, models, plug versions, production dates, and packaging versions where applicable.

Defects are separated into three classes:

Critical defects: Findings that may create an unsafe condition or fail a mandatory requirement, such as exposed live parts, severe overheating, failed required safety interlocks, or water creating a confirmed electrical hazard.
Major defects: Findings that affect normal use or saleability, such as no mist, serious leakage, timer failure, wrong adapter, abnormal noise, or missing essential accessories.
Minor defects: Workmanship issues that do not normally prevent use, such as small surface marks, limited color differences, or minor label lifting.

The same defect type may receive a different classification when its severity changes. A small cosmetic housing gap is not equal to an opening that exposes wiring.

A useful report should include:

Order, model, SKU, and color information
Available and packed quantities
Inspection stage and sample size
Inspection level and AQL values
Defect quantities by classification
Sample and carton identification
Actual measurements and test conditions
Mist, leakage, timer, and shutoff results
Photos of defects, labels, packaging, and test setup
Comparison with the approved requirements
Overall result and inspection limitations

Buyers can review our QC inspection process guide for the connection between preparation, scheduling, AQL sampling, on-site checks, reporting, and shipment review.

Packaging checks should focus on aroma diffuser risks:

Protection for the water tank, lid, and base
Movement of the tank inside the retail box
Adapter, cable, or remote control striking the tank
Pressure on the mist outlet
Missing or weak inner protection
Wet, crushed, deformed, or mold-affected cartons
Wrong model, color, plug, or accessory
Packaging claims that do not match the actual product

Depending on the destination market and approved artwork, label and packaging checks may include the model, SKU, rated data, power supply, tank capacity, timer functions, warnings, country of origin, battery information, conformity markings, disposal symbols, and responsible-party information.

CE marking should not be described as a certificate issued by UTS or as proof that an EU authority has approved the product. The manufacturer is responsible for identifying applicable EU requirements, completing the required conformity assessment, preparing technical documentation, issuing the EU Declaration of Conformity, and affixing the CE marking where applicable.^[3]

The WEEE crossed-out wheeled-bin symbol is a separate-collection marking for electrical and electronic equipment. It is not a product safety certification mark.^[4]

UTS does not issue CE declarations, UL, CSA, ETL, or other product certifications. When marking verification is included, our team checks whether the mark, model, rated data, packaging, label, and buyer-provided documents are consistent. A printed mark alone is not treated as proof that certification has been verified.

Barcode verification should confirm that:

The barcode is printed clearly and is not damaged, blurred, wrinkled, or blocked by packaging.
The barcode can be scanned successfully.
The scanned number matches the number printed beside the barcode.
The scanned information matches the product SKU, label, and client requirement.

GS1 barcode verification guidance covers both symbol quality and the integrity of encoded data, supporting the need to check not only whether a code scans but also whether it returns the correct information.^[5]

Barcode readability must reach 100% for the checked samples when barcode verification is included. Any barcode that cannot be scanned, returns the wrong number, or does not match the product information should be recorded, corrected, and rechecked. Routine UTS inspection does not assign barcode grades or scores unless the client specifically orders a separate barcode-quality assessment.

A shipping-carton drop test may also be included. The UTS working instruction uses one corner, three edges, and six faces at a height selected by packaged weight:

Packaged Weight	Drop Height
Below 21 lb / 9.5 kg	30 in / 76 cm
21 lb / 9.5 kg to below 41 lb / 18.6 kg	24 in / 61 cm
41 lb / 18.6 kg to below 61 lb / 27.7 kg	18 in / 46 cm

The carton is opened before the test, checked, and repacked using the same materials and method. After the drop, the carton should still provide reasonable protection, the retail box should remain saleable, and the inspected product should be free from damage or malfunction.

Transport-packaging procedures should be selected for the actual packaged product and distribution risk. ISTA publishes different procedures using different drop, vibration, compression, and conditioning requirements, so one drop sequence should not be presented as suitable for every shipment.^[6]

After a carton drop test, we check visible damage and basic product function. Where included in the approved scope, mist output, tank leakage, and timer response can be repeated. A carton should not pass only because it remains closed after impact.

Before inspection, buyers should provide the approved specification, sample, instruction manual, tank capacity, mist modes, timer settings, adapter data, packaging artwork, accessory list, defect classifications, and special test requirements. Missing requirements limit what the inspection can verify.

If the sampled goods fail, corrective action should match the actual finding:

Mist corrections should be followed by startup, mode, continued-output, noise, heat, and restart checks.
Leakage corrections should be followed by filling, static observation, operation, shutdown, and tank-reinstallation checks.
Timer corrections should be followed by checks of affected settings, indicators, shutdown actions, and restart behavior.
Packaging corrections should be followed by checks of tank protection, accessory position, and post-drop condition where required.
Barcode corrections should be rechecked for 100% scanning success on the checked samples and for consistency between scanned and printed information.

The original defect should remain documented even when correction is completed. A recheck should record what was changed, which samples were checked again, and whether the same problem appeared elsewhere in the lot.

Our project service team coordinates the inspection requirements and schedule with the client. Our office team reviews the approved documents before arranging the inspection. After the inspection, our team provides the report for client review. The buyer can then decide whether to release the shipment, request sorting or correction, replace defective goods, improve packaging, arrange laboratory testing, or schedule another inspection.

Random inspection does not guarantee that every unit in a production lot is defect-free, and on-site product inspection does not replace laboratory testing or product certification. It provides documented findings from the checked samples so the buyer can make a better-informed shipment decision.