30/50 Pcs KN95 Protective 5 Layers Face Mask BFE 95% PM2.5 Disposable Respirator
This is Black Fold Flat Mask with Exhalation Valve, filter efficiency ≥95%
- This face mask with one-way exhaust valve
- SAFETY: Protection against PM2.5, dust, pollen, haze-proof
- CORRECT USE: Please use mask correctly to avoid serious consequences caused by improper use. Store in a dry and ventilated location 23ºF – 122ºF (-5ºC – 50ºC, relative humidity<80%).
- EXHALATION VALVE: Less humidity and co2 build-up + prevents fogged glasses, Exhale for improved air exchange.
- DAILY USE: Suitable for adults’ daily travel protection, not suitable for toxic gas environment use. Not intended as a replacement for gas masks and medical masks. Not for use if breathing is impeded or unsteady, or during sleep.