HEPA Face Mask

This model has not been assessed for community use or in a clinical setting. Further optimization may be required.

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Thu, 2020-04-02 10:35

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Average: 5 (1 vote)




Depending on the HEPA filter donor source, you might find very poor to no flow rate. Could lead to O2 deprivation or CO2 build up. Most HEPA filters that are found in large sheets (air conditioners through vacuum cleaners) are designed for a high pressure air pump that pulls much higher flow rate than lungs do. There's also some data suggesting HEPA filters for industrial/home use might have chemicals in them that are harmful to breathe. Probably safest to stick to N95 donor material unless the HEPA donor material is rated for masks.

butcherofplastic - HEPA filters such as these are used in CPAP machines and certainly don't have chemicals that are "harmful to breathe". Also, these filters are meant to be High-Efficiency (the "HE" in "HEPA") and don't create much more air resistance than N95 mask materials.