First Defense Nasal Screens Size:Medium Thanks to a criss-crossing backstrap

Thanks to a criss-crossing backstrap design

Lightweight

Designed to provide comfort and a personalized fit

while the top conforms to your curves for individualized relaxation

where the nose connects to the foam material

First Defense Nasal Screens Size:Medium Thanks to a criss-crossing backstrapFirst Defense Nasal Screens, first featured on ABC's Shark Tank , are the world's first 100% breathable, non inserted hypoallergenic self adhesives that help filter a variety of potential inhalation risks, including bacteria, respiratory viruses, airborne allergens, carcinogens, and dust. First Defense Nasal Screens Features and Benefits: Nasal Screen Can Be Worn Up to 24 Hours Nasal Defense for Airborne Germs and Particles Ideal for Those Who Work in