Critical Cover PFL Procedure Mask Blue Stripe One Size Fits Most

The innovative and patented Positive Facial Lock? (PFL?) feature utilizes Twist-Seal? technology that allows the user to create a custom fit each and everytime This unique feature significantly reduces the possibility of the user inhaling airborne contaminants and creates a positive seal to a variety of facial sizes and features Additionally, the integrated Magic Arch? prevents the mask from coming in contact with the user’s nose and mouth thereby making it easier to breathe while enhancing filtration efficiency