3 ms·
There are two major problems that I see: - Source of clean air: HEPA filter will get contaminated and needs to be changed. UV sterilization might do it, but bu
by angry_octet 7y ago
There are two major problems that I see:
- Source of clean air: HEPA filter will get contaminated and needs to be changed. UV sterilization might do it, but bulky and power intensive. Otherwise carry your own gases -- extremely technical, likely to asphyxiate yourself.
- As soon as you go I to a red zone the exterior of the suit is contaminated. Basically you need a disposable suit/gown outside the positive pressure suit.
Only other issue is that this is bonkers. Stay at home, wash your hands, wear a face shield when out to prevent touching your face if need be.
- dogma1138 7y agoUnless you are in a room with 20 infected people the filter won’t matter that much. A few layers of cotton is usually enough to filter 95%> of all 0.3 micron particles this is because the filtration is based on the fact that the thickness of the filter is orders of magnitude larger than the size of the particles so the size individual holes at any given layer don’t matter that much. That said the majority of the benefit from this suit wouldn’t come from air filtering but from the fact that you won’t get contaminated droplets on your face and you won’t be able to touch your face with your hands after touching contaminated surfaces.
- Engineering-MD 7y agoDo you have a source for this?
- coderintherye 7y agohttps://www.cambridge.org/core/journals/disaster-medicine-and-public-health-preparedness/article/testing-the-efficacy-of-homemade-masks-would-they-protect-in-an-influenza-pandemic/0921A05A69A9419C862FA2F35F819D55 https://www.cambridge.org/core/journals/disaster-medicine-an...
- Johnny555 7y agoI think that study is testing the opposite what what this suit provides -- it's not testing protection of the wearer, but testing whether or not the mask protects others: The median-fit factor of the homemade masks was one-half that of the surgical masks. Both masks significantly reduced the number of microorganisms expelled by volunteers, although the surgical mask was 3 times more effective in blocking transmission than the homemade mask.
- angry_octet 7y agoSorry this is completely wrong. If you get enough airflow to breath you're getting enough virus to get sick.
- spiritplumber 7y agoI made this for a neighbor who is a ER nurse and told me they ran out of "proper" suits. It's better than nothing. The idea is that you can keep throwing out the outer suit but keep the rest.