Five design areas to review
- Fit range: define the intended user range, adjustment method, pressure points and stability during movement.
- Air path: check where air enters and exits, whether hair or clothing can obstruct it, and whether guards limit access to moving parts.
- Contact surfaces: identify materials, edges, plate position, temperature control and the response to sensor or fan faults.
- Moisture: evaluate sweat and condensation paths so moisture is not directed toward electronics, seams or charging interfaces.
- Power system: verify battery location, protection, charging input, heat generation, runtime test method and labeling.
Sample evaluation matrix
| Test | Record |
|---|---|
| Fit and movement | User range, adjustment setting, movement sequence, pressure or slip observations |
| Contact temperature | Ambient temperature/humidity, mode, time series, measurement point and instrument |
| Airflow | Outlet, distance, speed setting, obstruction condition and instrument |
| Noise | Background level, distance, orientation, mode and sound metric |
| Runtime | Battery identity, starting charge, mode, end condition and temperature |
Evidence boundary
Wearable cooling products are not medical devices merely because they provide a cooling sensation. Avoid treatment, heat-illness prevention or therapeutic claims unless the product has the required evidence and regulatory status for that claim. Product pages should describe intended consumer use and practical limitations.
Next steps
Review condensation and contact safety, then send a complete RFQ for model-specific confirmation.