There is air purification device that actually changes the molecular level, so it gets rid of the smell, not filters it. I know this works, we have used it in a room where the owners had 4 cats and three litter boxes, it removed all the odor. I can send you more info if this might be off interest, it cost about $499. Also works on smokers, gease odors. Please contact me at firstname.lastname@example.org. A short write up:
Incorporating photo catalytic oxidation technology, high level negative ionization, safe levels of ozone, and electrostatic filtration, the GT3000 reduces particles and inactivates microbes thus providing a cleaner, healthier environment for you and your family.
Using four advanced technologies, the GT3000 helps to eliminate Odors, smoke, pollen, dust, bacteria, mold, pet dander, viruses, and much more. Noticeable pollution is eliminated in as little as 15 minutes, and the most difficult pollution in as few as 24 hours.
Unlike other air purifiers that have only one or two ways of eliminating pollution, the GT3000 has four advanced technologies to destroy pollution from the air, embedded in walls, ceilings, floors, carpets, furniture, clothing, on counter tops and other surfaces. These technologies help to sanitize everything in the house and reduces or eliminates all odors, including cigarette smoke, mildew, cooking odors, and more.