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Since the importance of masks in reducing the risk of coronavirus infection became clear, many have wondered whether wearing two instead of one could offer greater protection. The topic has been debated for some time, air jordan 1 but in recent days it has become topical again following some statements by Anthony Fauci, air force one air one of the most respected immunologists in the United States and head of the National Institute of Allergy and Infectious Diseases. During a television interview, nike for shoes Fauci said: 鈥淚f you have physical protection with one layer and you put on another, common sense tells us that the protection will probably be more effective.鈥?Fauci later scaled down his statements, advising to still follow the instructions of the US health authorities, who for now do not recommend using two masks or preferring respirators which I offerno greater protection like FFP2 masks. Even before Fauci's interview, however, many had started wearing a double mask. The President of the United States himself, Joe Biden, has been seen on several occasions with two masks and it is increasingly common to see people on the streets and on public transport doing the same in different parts of the world, including Italy. In general, they say experts, it is true that two masks can offer greater protection. During the pandemic we discovered that coronavirus viral particles spread with drops of saliva (droplets) or by remaining suspended in the air for several hours (aerosols), and that for this reason it is important to wear masks to reduce the risk from coming into contact with the virus or contaminating others if you are infected. A fabric barrier...