GIR's patent-pending filters fit most face masks and are custom fit for GIR Mask Kits. Whether you're wearing a cloth face cover or a GIR mask, you should always use your mask with a filter. This is a general-purpose filter, and provides general-purpose protection.
Includes: 10 general purpose filters; dispose of the filter after use
GIR's general purpose filters are made from four layers of material: two outer layers of spunbond nonwoven polypropylene and two inner layers of melt-blown nonwoven fabric
An outer spunbond nonwoven polypropylene layer to block initial large particles, dust, and liquid droplets
A double layer of very fine, electrostatically charged melt-blown nonwoven fabric to block finer dust particles, bacteria, and virus-carrying droplets, and an enclosing inner layer of spunbond polypropylene to block exhaled droplets
Tested to achieve 99.7 percent bacterial filtration efficiency (BFE)
This is not an FDA-approved medical device