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Melt Blown Face Mask Filter Material is a type of HEPA (high efficiency particulate air) filter. This 100% virgin polypropylene filtration material can be used for PPE (personal protective equipment) masks and respirators. This material has been tested to block 95% of airborne particles with an average particle size range of 3.0 ± 0.3 microns (also known as micrometers). Use this material as the filter layer inside a DIY face mask or face respirator.
Please Note: This material is single use only and non-washable.
This mask filtration material is rated at ASTM Level 1 (see documents). The American Society for Testing and Materials (ASTM) is an international standards organization that develops and publishes voluntary consensus technical standards for a wide variety of materials and products. A Level 1 rating is for Low Fluid Resistance. When this filter material is used as the inner layer of a face mask made from a recommended mask material, such as Spun Bonded Polypropylene Non-Woven Material for Masks, the effectiveness of the mask increases.
Testing & Certifications
This filtration material has gone through rigorous testing and has passed all required certifications for use as the filter material in masks and respirators for blocking 95% of particles. It has passed the BFE (Bacterial Filtration Efficiency) Test. This test determines the material's filtration efficiency by passing aerosolized particles through the material at a constant flow rate and fixed air pressure. This test method complies with ASTM F2101-19 and EN 14683:2019, Annex B.
Please Note: This filter material has only been tested for BFE, not PFE. PFE testing is for particles smaller than those that meet BFE standards.
This material has also been tested for breathability and has passed the necessary certification. It was administered and passed the Delta P Test, which complies with EN 14683:2019, Annex C and ASTMF2100-19.
All test method criteria were met for this material. Testing was performed in compliance with the United States FDA (Food and Drug Administration) good manufacturing practice (GMP) regulations 21 CFR Parts 210, 211 and 820.
|Weight:||.8 ounces per square yard|
|Special Features:||Breathable, Water Resistant|
|Certifications:||ASTM F2101-19, EN 14683:2019|
|Delta P Flow Rate:||8 Liters Per Minute (See Documents)|
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Demo of Mask Filter Material
We will be wearing masks for the rest of lives, as we are both immunocompromised and I would have a difficult time surviving covid 19, or another bout of H1N1 influenza. I was so appreciative when Sailrite offered this product during the height of the mask making time period. They also published a very excellent pattern and sold other mask making materials. I think by this selfless act, Sailrite showed that they have true humanity and selfless community spirit. I was glad to be able to purchase another 5 yd piece of this excellent mask filter--this should do us. thank you so much for carrying it.
Happy I got this
This seems to be the real deal. Easy to breath through. I am layering it between light weight nonwoven polypropylene or or polyester. Makes it much easier to handle and also makes me feel better about the uncertain information about breathing in small particle fibers.
Material was exactly as specified. Delivered on time.
Used as primary filter for face mask during COVID-19. Inserted between two cotton layers. Breathable all day comfort.
Delivery was very fast and we're quite pleased with the product, would recommend to others.
Thank you exactly as described.
I received this order within a week. It is what I thought it would be and came in good shape. Donna
Great removable mask filter.
Fast shipping and great removable filter for masks.
Very h;appy to have this instead of relying on vacuum cleaner bags for filters. Love that I can cut to fit the masks I make & that you took the trouble to have the product tested. Thank you!
the product was for facemasks. I am pleased with the product but disappointed that it was not washable and must be discarded.