Face Mask Refillable Insert 2.5PM Filters 4 Pack - Walmart ...
Free 2-day shipping. Buy Face Mask Refillable Insert 2.5PM Filters 4 Pack at Walmart.com. Pickup & delivery Walmart.com. ... Our PM 2.5 filters have a 5 layer filter with an activated carbon layer in the middle. About This Item. We aim to show you accurate product information.