Muni LRV 1543A's Ventilation is Full of Bug Parts

Every so often when I get on the N Judah and take my usual seat on one of the benches near the center, my nose and face starts to itch. I'm seriously allergic to, as an allergist put it way back in my childhood, "insect exoskeletons." That crap in the bottom of an old time storm window, the dried up bugs that have turned into dust, it's like breathing fiberglass to me. Same with anything where dead bugs have turned into powder. It only takes a couple of whiffs and then an incredibly intense itching starts.

So this is how I know that car 1543A, the one I rode home today, has a ventilation system that's just full of that shit. 4 hours later, and my nose is still raw and itchy.