Respirators (in simple form) are filters and are worn by the rest of us,
Remember that Obama jumbled speech:
“Everybody knows that it makes no sense that you send a kid to the emergency room for a treatable illness like asthma. They end up taking up a hospital bed. It costs when, if you, they just gave, you gave, treatment early, and they got some treatment, and uhhh a breathalyzer, or uhh, an inhalator, not a breathalyzer...”
“inhalator”.
I’d forgotten that one. Thanks for the chuckle.