Anti-epidemic mask is a sanitary product, generally refers to the device worn on the nose and nose to filter the air entering the nose and nose to prevent harmful gases, odors, droplets from entering and exiting the wearer's nose and nose, made of gauze or paper .
Classification of epidemic masks:
Epidemic mask N series: No time limit for protection of non-oily suspended particles
Epidemic mask R series: protection of non-oily suspended particles and sweaty suspended particles for eight hours
Anti-epidemic mask P series: protection against non-oily suspended particles and sweaty suspended particles without time limit
When the carrier of some particulate matter is oily, and these substances are attached to the electrostatic non-woven fabric, it will reduce the electrical property and allow the fine dust to penetrate. Purpose of dust. Therefore, each level of the mask series has been divided into three levels: 95%, 99%, 99.97% (ie, 95, 99, 100 for short), so there are 9 categories of filter media.
Second, the EU EN149 standard epidemic masks:
FFP1 category epidemic masks: minimum filtering effect> 80%
FFP2 category epidemic mask: minimum filtering effect> 94%
FFP3 Category Vaccination Masks: Minimum Filtration Effect "97%
Third, the Australian AS1716 standard epidemic mask
Anti-epidemic mask P1: Minimum filtering effect> 80%
Anti-epidemic mask P2: minimum filtering effect "94%
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