Can valved n95 masks be worn during a new coronavirus epidemic
Can valved n95 masks be worn during a new coronavirus epidemic?
The N95 respirator with exhalation valve does provide the wearer with the same level of protection as without a valve. The presence of an exhalation valve reduces exhalation resistance and makes breathing (exhalation) easier. Some users believe that a respirator with an exhalation valve can keep the face cool and reduce the amount of moisture that accumulates inside the mask. However, in situations where a sterile area must be maintained (for example, during an invasive procedure in an operating room or operating room), a respirator with an exhalation valve should not be used because it allows unfiltered exhaled air Go out to a sterile area.
In addition, patients who have been infected with the new coronavirus should not wear masks with valves.