Formaldehyde Increases through Exposure to Ozone from Ionizers and Ozone Generators
The above is the title of an article that I came across while searching for MERV related information – the article was written by Jim Rosenthal.
Very interesting I believe and very informative, particularly to those in the air filtration business.
Quoting briefly (as you can read the rest of the article from the publishing website – link: http://allergyclean.com/article-formaldehyde.htm) the rest of the meat and potatoes you can find and read on the URL / link above.
Formaldehyde (HCHO) is a common substance in both indoor and outdoor environments. It is used in a wide range of products including wall board, glues, some carpets, fragrance products and insulation. It is also found in cigarette and cigar smoke and is a byproduct of hydrocarbon combustion. The National Toxicology Program (NTP) carcinogenic classification is that it is: “reasonably anticipated to be a human carcinogen.” Other health effects include eye, nose and skin irritation; exacerbation of asthma symptoms (characterized by coughing, difficulty breathing, bronchial spasm and pulmonary edema); lung damage; membranous nephropathy and liver toxicity. (Source: U.S. Department of Labor — http://www.osha.gov).
Formaldehyde exposure limits have been set by various governmental bodies. The National Institute for Occupational Safety and Health (NIOSH) has set a ceiling of 100 ppb for a 15 minute exposure.