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This sew shop in L.A. https://suayla.com/pages/our-mission https://suayla.com/pages/our-mission was claiming you could use a double layer of common blue shop to
by jackfoxy 6y ago
This sew shop in L.A. https://suayla.com/pages/our-mission https://suayla.com/pages/our-mission was claiming you could use a double layer of common blue shop towels as an N95 filter. I can't find that information on their site anymore.
If it is N95 effective, to my understanding it's pretty equivalent to HEPA air filter standard. It's on my to do list to make an indoor filter this way. If nothing else I hope to reduce the volume of indoor dust that settles in my office. Cheaper than HEPA filters.
- ipsum2 6y agoIt was probably removed for being inaccurate. If using blue shop towels worked as well, then manufacturing N95s would be a lot simpler.
- jacob019 6y agoShop towels are not going to offer anywhere near the filtering performance of melt-blown polypropylene for N95 masks.
- starpilot 6y agoIt takes a lot of specialized aerosol science equipment and expertise to measure the percentage filtration, so it's questionable that they could claim to replace N95 filter with towels.
- TylerE 6y agoHEPA is more like N100 than N95.
- colechristensen 6y agoHEPA is 99.95% of particles > 0.3 micrometers N95 is 95% of particles. They aren't equivalent.