Some types of masks that most of us are used to seeing from time to time are those with valves. So what is the effectiveness of these masks?
What are the Features of Valveless Masks?
Respirators without valves provide good two-way protection (both the user and the other person) by filtering both the air intake and the air flow.
What Are Valve Masks?
Valve breathing masks help to breathe faster than their valveless counterparts. In addition, moisture trapping in the mask is reduced thanks to the valve. However, the main difference here is the risk of contamination. The reason for this is that the valve opens while exhaling in valve masks.
What is the difference between valve and valve masks?
Unfortunately, respirators with valves cannot completely filter the particles exhaled in the user's breath, so if the user carries the virus, this person may not reduce the risk of contagion. If the user is a carrier or patient, the presence of the valve may cause that person's breathing / cough / sneezing to be exhaled outside the mask without being fully filtered.
Valved masks help to breathe comfortably because when exhaled, the protective layer inside the valve is pushed forward, allowing the user to exhale the air. The side effect of this, if the user is a patient or carrier, is also questionable.