They evaluate the effectiveness of masks through a variety of strategies. If you’re someone who is interested in effective masks, then this video will be of interest to you. What is used determines the efficacy of a mask. There are a lot of options to choose from for face masks. What masks work best? The company is buying over 20 different types of face masks. They are going to test the material and see if particles can get in. This test will determine the number of nanoparticles which can enter inside the mask. Covid-19 is mainly distributed through air. Because they are smaller in size, the virus is more likely to spread in the air. Masks prevent a large portion of the virus from getting into. There is a higher chance that you’ll suffer from a less severe case when wearing a mask. There are several options. It’s hard to decide which mask is the most appropriate. There were many surprises that came out. They aren’t effective at removing particles. Bandanas don’t do well either. The material is a crucial factor to take into consideration when picking a face-mask. rslkwwvco4.