100Pcs Adults PM2.5 Activated Carbon Filter Mouth Mask Filters Breathing Insert Protective Mouth Mask Filter for Men Women

Great filter. N95 masks filter 95% of particles 2.5 microns in size and provides some protection as small as .03 microns. This filter, when paired with a washable fabric mask, does even better and can filter 99% of 2.5 micron sized particles. In order for a mask to be certified as N95 or N99, it must for a seal around the face. Fabric masks cannot be certified N95/99 because they cannot form that perfect certifiable seal. So even though it's an amazing product, it cannot be labeled as N95. Save the official N95 masks for the healthcare workers and get one of these. Wear it correctly and it's just as good if not better than N99.