Designed to fit Reusable Pleated Cotton Mask and provide extra filtration, these filters are standard size that will fit other designs and styles. Activated carbon filter with five layer filtration inserts into mask pocket. Filter normally lasts 4 - 7 days.
Composed of non-woven melt blown fabric, carbon and advanced filter cotton
3.15"L x 4.75"W
Non-medical grade
Pack of five
