The most important questions in buying an air pollution filter mask
What is the N95 mask?
The n95 filtration mask, which is one of the most suitable masks in air pollution, is named according to the American NIOSH standard for the degree of filtering of masks, which means n more than resistance to oil and 95 means filtering dust particles more than It is 95%
What is the abbreviation FFP2 mask?
The FFP2 mask is a type of filter with a fixed filter named EN149: 2001. In this naming, FFP2 means that this mask filters up to 94% of harmful particles in the air between 2 and 5 microns in size.
What is the difference between an N95 mask and FFP2 mask?
The N95 mask is named after the American standard NIOSH, which is roughly equivalent to the FFP2 mask, which is named after the European standard EN149: 2001.
What is the difference between ffp2 and ffp3 masks?
The FFP2 mask filters up to 94% of particles between 2 and 5 microns, including fine dust, fibers, wet dust, and oily dust, while the FFP3 mask filters up to 99% of particles less than 2 microns. Stronger than ffp2 mask
What is an activated carbon filter?
In this type of mask, layers of activated carbon (activated carbon) are considered to protect against gases and vapors, which prevents the smell of pollution and harmful gases from entering the mask.
What is the EN149 standard?
Masks that comply with EN149: 2001 are designed to protect against airborne wet particles, solids, and airborne oil particles. In the EN149: 2001 standard, three categories of protection for filter masks are classified as FFP1, FFP2, and FFP3 based on filter performance.
Is a surgical mask (without a filter) useful for air pollution?
Ordinary surgical masks are not effective in filtering fine particles (ie small particles that are 2.5 microns or less in width), although they can relieve the discomfort caused by polluted air by providing a barrier between the nose and mouth, and larger annoying particles in Reduce the air.
Shelf life and duration of use of n95 and ffp2 filter masks
Usually, the useful life of N95 and FFP2 masks is about 8 working hours, but in the following three cases, the n95 or ffp2 filter mask should be replaced:
If the bowl-shaped mold of the mask has lost its shape and does not stick completely firmly on your face, it will leak air out into the mask.
If you feel the smell of smoke and polluted air from outside despite wearing a mask on your face
If the filter of the mask is dirty and the impurities are visible dust on the surface that cannot be cleaned