I am sure, we all wondered how safe is spray foam insulation or questioned Is spray foam insulation dangerous or toxic? Before getting our home insulation done. Well we are here to alleviate all the misconceptions. Around ten years ago, individuals related Polyurethane Spray Foam Insulation as an obscure, untested type of home insulation, which could be a risk to mortgage holders of the property. But today, Icynene open cell spray foam insulation is the safest form of home insulation with almost no risk involved for homes or homeowner.