You can get an ozone generator on Amazon for about $50. My son bought one when my grandmother left a pot on the stove, fell asleep, and her entire apartment at the Wrinkle Ranch was filled with smoke. Took about a day, but it worked beautifully. If you know someone who works at a hotel, check with them, maybe they could lend you their ozone generator, or next time they have to clean out a smoker's room, they'll let you hang the quilts inside. Most hotels have one. I think fire & water damage cleanup companies would also have one, maybe you can rent?