Surgical masks are typically used by surgeons to protect their patients from their mouth-borne germs — but “those masks don't work to prevent inhaling diseases.The masks, which cover the nose and mouth, are often made from a flimsy material and aren’t fitted to the face. In other words, spaces and gaps can form around the cheeks and edges of the mouth, making it easy for air to move in and out.
A more protective mask, known as an N95 respirator, may be more effective, said Schaffner. But, he noted, a non-medical professional using this mask is likely not using it correctly, doing little to prevent the spread of illness or inhaling a disease.
Certainly ,all the masks must do the test items what the masks test standards specified.each country has its own test standards for mask.there is a list for masks manufacturers to refer to:
A more protective mask, known as an N95 respirator, may be more effective, said Schaffner. But, he noted, a non-medical professional using this mask is likely not using it correctly, doing little to prevent the spread of illness or inhaling a disease.
Certainly ,all the masks must do the test items what the masks test standards specified.each country has its own test standards for mask.there is a list for masks manufacturers to refer to:
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