Ohbiger 10Pack PM2.5 N99 Mask Filter Face Masks Insert 5 Layers Activated Carbon Protective Filter Breathing Mouth Mask Filter,3.93"X2.36"

Beschreibung

Features: First layer of spunbond cloth filters micron-level dust Second layer filters industrial pollutants, automobile exhaust, second-hand smoke, and pollen allergens Third layer of activated carbon cloth filters micron-level dust Fourth layer offers filter density for smaller material Fifth layer of spunbond cloth filters out all kinds of harmful substances Filter size: As the picture show Package Included: 2 pieces per pack，10 pieces per lot (5 packs) Please note: 1. Filter insert can not be cleaned and should be replaced every 1-2 weeks. 2. When film or sticky sediment stains emerge, please replace the filter.