Can COVID-19 Patients Wear a Mask With a Breathing Valve?

The exhalation valve of the breathing valve mask is a one-way valve. When exhaling, the positive pressure of the exhaust gas blows off the valve disc, and the exhaled gas is quickly discharged. There is no filter layer in the exhaust process. If COVID-19 patients wear this mask The virus may be eliminated, so patients with confirmed and suspected COVID-19 should not wear such masks.