The day I arrived in my apartment, I was thrilled with my choice, and spent about an hour puttering around. Then a weird formaldehyde smell wafted into the front rooms. WJ smelled it too. We couldn't figure out where it was coming from, but I am now convinced my upstairs neighbor is embalming people (maybe even the former tenants) in his apartment.
Don't think I'm going to buy a formaldehyde meter. It costs 750 bucks.