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LIGHTWEIGHT AND BREATHABLE  Our mask filter replacements are ultra thin yet very effective. The 3 layer filter inserted into your face mask gives you the perfect balance of filtration and breathability.. HYPOALLERGENIC  The HEPA filters for face masks are made with non-toxic melt-blown non-woven polypropylene that is free from allergens. The HEPA filter face mask insert is non-irritating and contains no fiberglass.. REUSABLE  These HEPA filters for face masks create less waste and save you money as they can be used multiple times. These HEPA filter face mask refills can last up to 6 months.. MULTI-PACK  Our HEPA filter replacement for face mask product comes in a package of 5 facemask filters and is shipped to you in a resealable bag.. EASY TO USE  The 3 x 5 HEPA filter face mask inserts are perfect for use with most cloth face masks.  Simply insert one of the HEPA filter sheets for masks into the pocket in the cloth mask. At the end of each day simply remove your HEPA filter face mask insert from your cloth mask and allow it to air out for 48 hours..

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