N-95 mask only for health workers, says health dept

The health department has issued a circular against the inappropriate use of N-95 masks by the public. The N-95 mask is recommended for designated health workers, but many people have also started using it. A valved respirator N-95 mask is detrimental to the measures adopted for preventing the spread of coronavirus as it does not prevent the virus from escaping out of the mask, the circular states.