Many people bought 100 masks and then hoarded them for no reason. Is wise. Inventory is just what is needed. Dr. Peter Tsai, the inventor of the filter material for N95 masks, said that N95 masks are made of polypropylene material and are designed to fit your face closely, with almost no air leakage at the edges of the mask. For reference only, this mask can be reused.
Mask multiplexing method # 1
When reusing the N95 mask, place the used respirator in dry air for 3-4 days to dry. The polypropylene in the N95 mask is hydrophobic and does not contain any moisture. COVID-19 needs a host to survive. It can survive on metal surfaces for 48 hours, on plastic surfaces for 72 hours, and on cardboard for 24 hours. When the respirator dries within 3-4 days, the virus will not survive.
Take four N95 masks and number them (No. 1-4).
On the first day, use mask # 1 and let it dry for 3-4 days.
Apply mask # 2 on the second day, then dry for 3-4 days.
The third and fourth days are the same ...
Mask multiplexing method # 2
You can also hang the N95 mask in an oven at 70 degrees Celsius (158F) (without metal contact) for 30 minutes to sterilize-it is reported that covid19 cannot survive for 30 minutes at 65 degrees Celsius (149F).
Use wooden clips to hang the respirator in the kitchen oven for disinfection.
When disinfecting N95 masks, care should be taken to use UV rays-keep N95 masks away from UV rays / sunlight. The N95 mask degrades under ultraviolet light because it destroys the static charge in the polypropylene material. It is unclear how long this mask will be exposed to ultraviolet light before it fails.
Tips for reusing method # 1 and method # 2
Do not place the respirator on a metal surface, or too close to the metal surface-the temperature of the metal surface is higher than the air temperature.
Keep the N95 mask away from UV / sunlight.
When removing the mask, grasp the edge of the belt and remove the N95 mask. Your hands may be contaminated at this point-do not touch the inside of the respirator. Then wash your hands with soap for 20 seconds.
You don't need 100 masks. You can have 4 and follow the instructions to reuse them. Now saving resources is a major requirement. Understand the same reason, be the best yourself!
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