Remember in March I posted your translation American instructions for the production of a homemade respirator from a knitted T-shirt? There were nine more layers to breathe through. Who laughed at me? Now, guys, you have lived to the point that you are asked to breathe through six layers.
This is a new proposal by the US Centers for Disease Control to wear homemade masks over a medical mask.
We have already discussed the modernization of a medical mask by tying and tucking . Now it was the turn to put on one mask over another. I will say right away that this is a very good option.
Do so
They put on a regular medical mask, and put on a shop textile mask on top. The Americans used a store-bought three-layer cotton mask in their study. That is, a mask made of one layer of lace will not work.
These store-bought masks tend to fit better, so they fit the medical mask well to the face. Together they provide a good fit, no air leaks and increased filtering capacity.
And that will be six layers of material. It is difficult to breathe through such a mask. This is unpleasant, but bearable. If your breathing apparatus allows you to do this, then do so.
Personally, it still seems to me that this approach significantly reduces the likelihood of dropping the mask on the chin. That is, the more difficult it is to put on the mask, the more difficult it is to remove it. So that all sorts of freaks once again in a public place does not take it off.
Now let's talk about numbers
The article about the knots on the masks also has numbers. You can compare.
So if you are wearing such a double mask, then it will delay 83% of the drops that the patient coughs on you without a mask.
If such a mask is on the patient, but you are not wearing a mask, then it will delay 82% of the drops.
If this mask is on both, then you will get 96% fewer drops. This is already a record for conventional masks.
Have you tried this?
