Complete perimeter seal via a hypoallergenic medical adhesive.
 
SMALL/PETITE:  fits people with slimmer faces, many women, and most children. 17.5cm wide x 13.7cm high.
 
LARGE: fits most average sized adults. 20cm wide by 15cm high.
 
Features:
Enhanced protection in hazardous environments. Comfortable and offers easy breathing.  Controls exposure to: Infections transmitted via the airborne route, spores, allergens, mold, dust, debris, insulation, pepper spray, pollution, smoke particles, and other airborne particles.
Comes in a resealable plastic bag.
| USA Patents Issued | Made in the USA