polyurethane foam formaldehyde scavengers: applications in reducing aldehyde emissions introduction polyurethane (pu) foam, widely used in furniture, bedding, automotive interiors, and construction materials, is a significant source of volatile organic compounds (vocs), particularly aldehydes like formaldehyde. formaldehyde, a known human carcinogen, poses serious health risks, including respiratory irritation, allergic reactions, and even cancer with prolonged...