Identify
Model, revision, sample ID, battery state, attachments and operating mode.
Buyer evidence center
Portable Fan Testing Methods
A result becomes comparable only when the tested unit, setup, instrument, environment, operating mode and pass rule are recorded.
Airflow and air-speed test record
Direct answer: record air speed at defined points and distances for each operating mode. Keep the fan position, instrument orientation and environment constant, and report repeated readings rather than one unexplained peak.
Control
Distance, measurement grid, fan direction, instrument, room airflow, temperature and humidity.
Report
Individual readings, average, variability, test photos, date, operator and deviations.
Noise test checklist
- Measure and record the room background before operating the fan.
- State the microphone distance, height, angle and fan orientation.
- Record each fan mode after the speed has stabilized.
- Identify the instrument and applicable method or internal procedure.
- Note tonal, rattling or vibration observations that one dB value cannot describe.
Do not publish a general “quiet” claim from a single unit or from an unspecified distance. Tie any result to the tested sample and conditions.
Runtime, charging and thermal record
| Stage | Record |
|---|---|
| Precondition | Battery history, charge method, full-charge criterion and stabilization time |
| Runtime | Mode, display/lighting state, ambient temperature, start time and cutoff criterion |
| Charging | Input source, cable, voltage/current observations, charge time and end condition |
| Thermal | Measurement points, instrument, peak observations and abnormal behavior |
| Repeatability | Number of units, cycles, result range, anomalies and disposition |
Evidence boundary
These checklists define what to record; they are not test reports and do not claim that a product passed a standard. Request current, model-specific evidence and confirm whether the laboratory, method and report scope meet the destination market and buyer requirements.
Return to the buyer guide or request model-specific documents.