I thought about something like this for the last 10 years when taking public transport. It came again into my mind when I heard about tesla's biohazard filter

I thought about something like this for the last 10 years when taking public transport. It came again into my mind when I heard about tesla's biohazard filter system. It's just ridiculous how we accept the status quo. It can't be okay to be sick every year for 5-12 days and covid showed me no I don't have to be sick every year and don't get me wrong, clearly I'm not getting better in fighting this shit of if I have it every fucki g year. What are long-term effects of being sick every year?