Face Mask Filter, PM2.5 Mask Filter, Activated Carbon Replacement Filter for Face Masks, Filter Insert for Masks, Carbon Filter

These PM2.5 filter are made up of five layers of support that contain non-woven fabric, activated carbon and a melt-blown filter. The five layers effectively keeps away from PM 2.5 and a range of airborne contaminants.

- Keeps away a range of airborne contaminants and hazards including dust, seasonal allergies, smoke, pollution, ash, gardening pollen, micron-level dust and other harmful substances

- Easy to use, simply insert into the filter pocket opening. If the mask does not have a filter pocket, simply place inside the mask

- Replace weekly

Size: 4.72 x 3.15 inches (for adult), compatible with most adult masks

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