Completely unrelated, but not completely unrelated, there is a recall on some dehumidifiers.

Ironically, it seems the water they produce is not suitable for human consumption, so the EPA has stepped in to mandate replaceable HEPA filters on the drain side.

No, seriously, some number of them are reported to catch on fire per http://www.cpsc.gov/en/Recalls/2013/Gree-Recalls-12-Brands-of-Dehumidifiers/

If you have one, you might wanna check, or at least check yer insurance.