Features:<br />KN95 face cover, the filtering effect is up to 95 percent.<br />Made from non-woven fabric, moisture resistant, non-toxic, non-irritating. Anti PM2.5, haze, dust etc.<br />Using advanced environmental materials, the four-layer fabric effectively resists fine particles and bacteria in air pollution.<br />4-layer design, high density non-woven fabric, filtration - highly breathable non-woven fabric that can prevent dust, car exhaust, pollen, etc.<br />Respiratory protection according to KN95, filter efficiency up to 95%, breathable mesh composite fabric, suitable for all seasons.<br/>Specifications:<br />Item type: KN95 face cover<br />Material: non-woven fabric, meltblown filter<br />Air mass flow: 85L/min<br />Aerosol-particle: NaC1<br />Aerosol-concentration: 15mg/m³<br />Temperature: 23.0℃<br />Relative humidity: 35.8%<br />Filter efficiency: ≥95.0(KN95)<br />Inhalation resistance(Pa): ≤350(GB 2626-2006 6.5)<br />Expiratory resistance(Pa): ≤250(GB 2626-2006 6.6)<br />Package weight: 50g/1.8oz<br />Packing List:<br />50pcs*Face cover