Monday, January 17, 2022

N95 & KN95 Masks

When COVID started, I was thankful my friend Shirley sewed masks.  I heard the surgical masks were better and when I found them, I stocked up.  When I tried on an N95, I stopped wearing the surgical masks because the surgical masks gaped at the sides.  The N95 masks I have are a much better fit and it's all I use now.  I thought this article was very interesting:

CDC guidelines recommend wearing your N95 and KN95 mask for no more than five uses, however, some experts offered tips on how to prolong your mask wear and keep them clean.

Dr. Joseph Gastaldo, a physician who specializes in infectious diseases with OhioHealth told USA TODAY he recommends each person purchase a pack of N95's and rotate when they wear each mask. 

"If you're rotating your masks, washing your hands and storing them well, you can get five to a little bit more uses with them," Gastaldo said.

Gastaldo said sanitizing your hands before touching the mask is crucial and storing them outside or "in heat" will help keep the mask dry and clean. Dr. Sabrina Assoumou, an infectious disease physician at Boston Medical Center, echoed Gastaldo's recommendation.

“For an N95, we’d recommend you switch (the mask) every day,” Assoumou told USA TODAY. “But, you can rotate them. If you have three masks, (for example), you could number them and switch them around.”

Assoumou added you can catch signs of when to throw out your N95 or KN95 mask such as “fraying, stretched out straps or a deterioration of the mask.”

The CDC said each time you wear and take off your N95 mask the straps weaken and eventually they won't be able to “generate enough force to create a tight seal with the face.” 

How should you store your masks?

Heating is one of the best strategies for cleaning an N95 mask, according to the CDC –  the mask can be heated at a maximum of 158 degrees Fahrenheit for 60 minutes. It recommends hanging the mask in your oven using a wooden or plastic clip.

The N95 masks can also be steamed and boiled if the plastic straps are not exposed, it's not recommended to use soap or water to clean the mask.

"Lots of people will store their mask in a brown paper bag to keep it away from dirt and germs on surfaces. Others will store it outside in the heat to kill off any germs and keep it dry," Gastaldo said. "All of this cleaning will ensure you can use your N95 and KN95 mask for longer."

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