FEMA trailer formaldehyde solution: Pot plants
 

"[PICAYUNE, Miss] A scientist from Picayune says he has the answer to
eliminating formaldehyde problems in FEMA trailers and Mississippi
Cottages."

http://www.wlox.com/Global/story.asp?S=8581060

But the government's not interested, evidently because most people in FEMA
trailers already have pot plants.