The European standard for masks is FFP. What is the grade of FFP2 mask?How long will it last?Now, let's get to know more about it.
how long can i use an ffp2 mask
Ffp2 mask, one of the European mask standard EN 149:2001, disposable (usually 2-4 hours), minimum filtration efficiency is greater than 94% and can block harmful aerosols without inhalation.
The FFP2 standard is based on the principle of electrostatic adhesion through Bai. It can efficiently filter dust and oily particles in the air of THE ZHI. The filtration efficiency is above 94%.The nose clip can be bent to ensure the best fit between the mask and the face and smooth breathing;With the valve of the overall absorption effect, the effect of protection will be much better than no valve, usually no valve particle supply filter in about 90%, with valve is more than 65%
It is understood that the mask level is higher than FFP1 (minimum filtering effect > 80%), but lower than FFP3 (minimum filtering effect > 97%).
Common FFP2 masks are disposable
FFP2 masks, one of the European mask standard EN149:2001, adsorb harmful aerosols, including dust, smoke, fog drops, poisonous gases and vapors through the filter material, and prevent them from being inhaled by people.FFP2 minimum filtering effect & GT;94%.We usually see disposable FFP2 masks. This one is disposable.There are also half masks and full hoods, both of which can be used multiple times by changing the filter element.
What happens when the FFP2 mask is removed
The outer layer of FFP2 type masks is often filled with dirt and bacteria in the external air, while the inner layer blocks the exhale bacteria and saliva. Therefore, the two sides should not be used alternately, otherwise the contaminated outer layer will be inhaled into the human body when directly sticking to the face and become the source of infection.When not wearing a mask, fold it into a clean envelope and fold the face close to your nose and mouth. Do not put it in your pocket or hang it around your neck.
FFP2 masks are similar to N95 and KN95 masks and cannot be cleaned.Because wetting will cause the release of static electricity of the mask, it cannot absorb dust with diameter less than 5um.High-temperature steam disinfection is similar to cleaning in that it also releases static electricity, making masks ineffective.
If you have ultraviolet lamps at home, you can consider using ultraviolet lamps to sterilize the surface of the mask, so as to prevent accidental contact with the mask surface and pollution.High temperature can also sterilize, but the mask is usually made of the same material. High temperature may cause the mask to burn and cause safety hazards. It is not recommended to use oven or other facilities for high temperature disinfection.
Post time: Dec-14-2020