Reusable 5-Ply KN95 Virus Protection Respirator Valve Face Mask
- Anti-virus face mask respirator. The mask removes 95 percent of air particles at least 0.3 microns in diameter or larger or FFP3 meaning the mask will only leak a maximum of 5 percent of air and filters 99 percent of air particles at 0.3 microns. Including dust, smoke or viruses.
- Thick layers of protection effectively resist the invasion of harmful substances, protecting against virus, dust, liquids and weather.
- Seal the bridge of the nose improves the adhesion of the item.
- Comfortable to wear: No falling off, comfortable to wear and the mask is designed with high strength. The mask is wide enough to cover the nose, mouth and face, it fits for most faces.
- Respirator valve: Independent one-way breathing valve effectively reduces respiratory resistance.
Specifications:
- Air mass flow: 85L/min
- Aerosol-particle: NaC1
- Aerosol-concentration: 15mg/m³
- Temperature: 23.0℃
- Relative humidity: 35.8%
- Filter efficiency: ≥95.0(KN95)
- Inhalation resistance(Pa): ≤350(GB 2626-2006 6.5)
- Expiratory resistance(Pa): ≤250(GB 2626-2006 6.6)
- Material: Non-woven fabrics
- Quantity: 50pcs in one box
