This is not really a survival question, but I figure with all the knowledge people on this forum have, I maybe able to get the answers where the my inferior google-fu has failed me. Basically I've moved into a new place, and came upon these two problems while settling in --

1. The landlord refinished the cast iron bathtub with aircraft paint. It looks good, almost like ceramic refinishing. Would there be any health hazards from soaking in the bathtub?

2. I have a portable AC that has to run a duct to the window. The duct gets hot. I went to the hardware store to look for insulation. All the fiberglass insulation products have warnings that scare me: to install it, I have to wear an N95 mask, goggles, long-sleeves, and then launder the clothing separately, and rising the washing machine after. I just need to cut the insulation to length and wrap it around the duct. What kind of risks am I facing? Also, do I need to somehow cover up the ends?