04-01-2020, 07:23 PM
I did a little experiment with dust masks. I put one on my face "normally" and breathed with my glasses on. My glasses fogged up, indicating a leaky seal around my nose.
I then pinched the little metal strip on the mask around my nose and tested again. This helped a lot, but there was still a little fog on my glasses.
Then I rolled up a 2-3 inch piece of duct tape like a straw with the sticky side out and added it to the mask where the metal tab did and pressed the metal strip and duct tape. That was a really good seal.
Since sealing and hygiene/cross-contamination seem to be the biggest issues with masks I suggest doing a few experiments yourself and consider duct tape for sealing any leaks. Duct tape is called "duct tape" because it was made to seal air ducts air tight. Grab a small mirror and with a mask on hold the mirror around the mask to check for leaks and seal any with some duct tape.
I'm not sure about the material, but a big difference between dust masks you get at the hardware store and surgical masks in that dust masks only have one elastic strap and surgical masks have two. I think it's probably a good idea to check out the differences and to add another strap to better duplicate surgical masks.
I then pinched the little metal strip on the mask around my nose and tested again. This helped a lot, but there was still a little fog on my glasses.
Then I rolled up a 2-3 inch piece of duct tape like a straw with the sticky side out and added it to the mask where the metal tab did and pressed the metal strip and duct tape. That was a really good seal.
Since sealing and hygiene/cross-contamination seem to be the biggest issues with masks I suggest doing a few experiments yourself and consider duct tape for sealing any leaks. Duct tape is called "duct tape" because it was made to seal air ducts air tight. Grab a small mirror and with a mask on hold the mirror around the mask to check for leaks and seal any with some duct tape.
I'm not sure about the material, but a big difference between dust masks you get at the hardware store and surgical masks in that dust masks only have one elastic strap and surgical masks have two. I think it's probably a good idea to check out the differences and to add another strap to better duplicate surgical masks.
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