NasalGuard Mask Spray - Extra Layer of Protection Against Harmful Airborne Particles - Mask Refresher Spray with Patented Positive Ion Technology - 0.5 Fl Oz (15 mL) Cool Menthol

Nasa uard Mask Spray is a unique spray that uses patented ionic particle blocking technology. It is sprayed on the outside of the face mask. It reduces the inhalation of harmful airborne particles.

Extra Layer of Protection: Offers additional barrier on top of the mask. Reduces exposure to airborne particles.,Blocks 2X More Airborne Particles: Filters out Contaminated air, dust, pollen, pollutants and more.,Up to 4 Hours of Protection: Spray the outside of your mask 2 to 3 times every 4 hours or before exposure (Trains, Bus, Airplanes).