[1]https://abcnews.go.com/Politics/florida-rep-matt-gaetz-wears-gas-mask-vote/st
ory?id=69396272

Jim Bell's comment.

My understanding is that respirators DON'T filter exhaled air, just incoming air
.  So, people around such a wearer aren't protected from his infection.  This sh
ould be fixed.

References

   1. https://abcnews.go.com/Politics/florida-rep-matt-gaetz-wears-gas-mask-vote/story?id=69396272