1. Packaging & Labeling
- Outer carton: Intact, no damage, proper sealing, correct quantity per carton.
- Inner packaging: Product securely packed with foam/inserts to prevent movement.
- Labeling:
- Brand, model, serial number.
- Power rating (V/Hz/W).
- Safety marks (CE, UL, FCC, RoHS, etc., as per target market).
- Country of origin.
- User manual & warranty card included.
- Language on labels matches destination requirements.
2. Quantity Verification
- Confirm actual quantity matches packing list and purchase order.
- Check carton markings (e.g., “1/1”, “2/2”) for multi-piece sets.
3. Visual & Physical Inspection (Random Sampling – AQL Standard)
| Check Point | Details |
|---|---|
| Appearance | No scratches, dents, cracks, or discoloration on body, filter cover, control panel. |
| Workmanship | Even gaps, smooth edges, no burrs, glue overflow, or loose parts. |
| Buttons & Display | All buttons respond, LED/LCD screen lights up clearly, no dead pixels. |
| Air Inlet/Outlet | Grilles clean, no blockage, filters pre-installed correctly. |
| Power Cord & Plug | Correct plug type, undamaged, proper length, securely attached. |
4. Functionality Test (On-Site Plug-in Test)
- Power On/Off: Unit starts and stops correctly.
- Fan Speeds: All speed levels work (Low/Mid/High/Turbo/Auto).
- Modes: HEPA, Ionizer, UV (if applicable), Sleep mode, Timer — all functional.
- Air Quality Sensor (if equipped): Responds to smoke/test aerosol.
- Noise Level: Within spec (e.g., <55 dB on high, <30 dB on sleep).
- Filter Indicator: Lights up if filter removed (for models with reset function).
5. Filter Check
- Type: Confirm correct filter (HEPA H13, carbon, pre-filter) as per spec.
- Condition: Clean, no damage, properly sealed.
- Installation: Securely fitted, easy to remove/replace.
6. Electrical Safety Test
- Hi-Pot Test (if equipment available): No leakage.
- Grounding Continuity: For models with 3-pin plug.
- Power Consumption: Within ±10% of rated wattage.
7. Accessories & Documents
| Item | Must Include |
|---|---|
| Remote control (if applicable) | With battery, functional |
| User manual | Correct language/version |
| Warranty card | Present |
| Cleaning brush (if included) | Present |
8. Barcode & Serial Number
- Scan barcode → matches product model.
- Serial numbers recorded and unique (no duplicates).
9. On-Site Performance Test (Optional but Recommended)
- Run unit for 10–15 minutes:
- No abnormal noise/vibration.
- No burning smell.
- Airflow strong and consistent.
10. Sampling Standard (Reference AQL)
| Inspection Level | Typical AQL |
|---|---|
| Critical defects | 0.0 |
| Major defects | 1.5 |
| Minor defects | 4.0 |
Example: 200 units → inspect 32 units (General Level II)
🚨 Critical Fail Points (Auto-Reject)
- Unit does not power on.
- Fan does not spin.
- Safety certification missing (for regulated markets).
- Wrong voltage (e.g., 110V shipped to 220V country).