One Size Fits All: Elastic straps and adjustable nose clip.
Wide Application: Both home and Non-Medical professional use.
Performance Standard Compliance: GB2626-2006
95% Filtration performance. Filters particles as small as 0.3 microns from the air. Provides a similar level of protection as N95 masks. Helps protect against flu, swine flu, and avian flu. Also, non-toxic filters dust, pollen, allergens, dander, sawdust, garage dust, garden, and general household dust and irritants. Protection type: Anti-PM2.5, Anti-Dust, Anti-Pollen, Anti-Bacterial .54