HOT King Crimson face mask new design – Coronavirus

CDC has published helpful guidelines for anyone with a beard who wants to wear a mask.
But there are also simpler alternatives. A recent study, but not peer-reviewed, has found that 3M surgical masks - the type of surgeon worn in the operating room - can remove nearly 75% of particles up to 0.02 in size. micrometer. Although less effective than the N95 respirator, surgical masks can still help reduce the number of inhaled particles. But by cutting a hole in the heel of the sock and wearing it on a mask can improve the ability of the mask and filter up to 90% of particles. "The surgical mask, unlike the N95 respirator, is designed to fit loose on the face," said Loretta Fernandez, an environmental chemist at Northeastern University, Boston, Massachusetts, one of who participated in this study, said. "This allows the air to find its way around the respirator to reach the breathing area rather than straight through the mask." They found that adding extra nylon on the outside of the mask reduced this. Fernandez and collaborator Amy Mueller, an engineer at Northeastern University, also looked at the effectiveness of various homemade masks. The most effective type uses multiple layers of fabric, although it is still not as effective as N95 masks and surgical masks. However, adding a layer of nylon on top to allow masks to adhere to the face increases the efficiency to the point where some homemade masks can prevent 80% of the particles.


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