O2 Nose Filters Sizing Pack

O2 Nasal Dilators are made with several layers of innovative 3M-filtration technology. Improves airflow while helping prevent airborne particles such as pollen, pet dander, mold spores, pollution, and more from entering the nasal passages. The Sizing Pack is a way to explore options. Each Sizing Pack includes 1 filter of the following sizes: Small, Medium, Large, Extra-Large, as well as an informational card. Once you have determined the right size for you, the lightweight and discreet filter will contour to the inside of your nose.