You should be aware that the only air cleaning system accepted by the medical and scientific communities is true medical HEPA medium for particles and the combination of activated carbon and natural zeolite for gases. Urethane is a further concern. Curtain folds collect dust. Harbor dust, dust mites and animal dander. Carbon monoxide is the primary danger, and has a cumulative effect in the human system.
Asbestos fibers reside in lung tissue and can cause lung cancer or emphysema.
When good health is the issue, you demand quality. In an independent test, twenty-one of the top brand name air cleaners were tested and rated by one of America's leading consumer reporting organizations. After careful review, it was determined that Austin was rated as best in six categories. The Austin Air Cleaner removes both irritating particles and hazardous gases. True medical HEPA traps particulates, while gases and odors are eliminated by a combination of activated carbon and zeolite.