Scientists in Hong Kong did real-world tests. They tested for formaldehyde and other VOCs in homes and then compared new/remodeled homes with older apartments. The data showed formaldehyde fell 48% one year after remodeling. After two years, formaldehyde dropped to the same levels as in older homes.
Click here to read more on facts you need to know about formaldehyde: https://smartairfilters.com/en/blog/3-things-you-need-to-know-about-formaldehyde-part-two/
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