UF-schuim (ureumformaldehydeschuim)

UF foam is urea-formaldehyde foam, a foam insulation material that was injected into cavities in walls of buildings. Over time it can release formaldehyde, a gas that may cause irritation and other health complaints. Because of this, its presence in homes is a health concern in the Netherlands, and the formaldehyde levels it produces are monitored against health advice from public health bodies.