Manufactured furniture, also known as ready-to-assemble (RTA) furniture, contains formaldehyde, which is a known carcinogen. Formaldehyde acts as a preservative for pressed wood, and therefore is widely used in desks, bookshelves, hutches, beds and cabinetry, as well as in building materials including plywood, OSB, MDF and particle board. To reduce exposure, use a non-toxic sealant on exposed wood surfaces.
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