50Pcs 5 Layers PM2-5 Activated Carbon Filter Replaceable Anti Haze Filters Protective Mouth Filter for Outdoor

Feature: 1. Five-layer PM2.5 carbon filter, made of activated carbon and non-woven meltblown filter cloth, effectively away from PM2.5 and a series of airborne pollutants. 2. The size of the carbon filter is about 4.72 x 3.15 inches, can use at the home or outdoor 3. This filter can prevent particulate dust in the air, seasonal allergies, pollution, ashes, garden pollen, etc., suitable for most occasions.                                           How to use: Step 1: Take out the product after washing hands; Step 2: Put the PM2.5 carbon filter pad in the lid to prevent slipping; Step 3: Install PM2.5 carbon filter wear it correctly. Product Specifications: Material: non-woven fabric, melt-blown fabric. Dimensions: 4.72 inches x 3.15 inches. Note: 1. When the stain of thin film or sticky deposit appears, please replace the filter. 2. The filter element cannot be cleaned and should be replaced daily for best protection.