What insulation does not have formaldehyde?

Many modern insulation products are made without formaldehyde, and this has become the standard for most major brands. For fiberglass, the leading formaldehyde-free options include Owens Corning Pink Next Gen Fiberglas, which is made with a 100 percent plant-based, formaldehyde-free binder and is GREENGUARD Gold certified. Johns Manville ComfortTherm encapsulated batts and Climate Pro blown-in fiberglass are also formaldehyde-free and use a bio-based binder. CertainTeed Sustainable Insulation fiberglass batts and InsulSafe SP blown-in are formaldehyde-free. Knauf EcoBatt fiberglass uses its ECOSE Technology, a bio-based binder with no formaldehyde, phenols, or acrylics, and is naturally brown in color. For non-fiberglass options, Rockwool or Roxul mineral wool batts made from volcanic rock contain no formaldehyde. Cellulose insulation made from recycled newspaper, such as GreenFiber, Applegate, and Nu-Wool, uses borate fire retardant and contains no formaldehyde. Sheep's wool insulation and cotton insulation made from recycled denim are also naturally formaldehyde-free. Rigid foam boards like Owens Corning FOAMULAR XPS, Johns Manville AP Foil polyiso, and Dow Styrofoam also do not contain formaldehyde. When shopping, look for labels that specifically say Formaldehyde-Free and GREENGUARD Gold certified, and check the product data sheet. Most insulation sold at Home Depot and Lowe's today is formaldehyde-free.