ENCIFORM-RM is a fine white crystalline powder. Liberated in the form of formaldehyde gas, with heat under controlled condition, rapid conversion is assured, converting all ENCIFORM-RM to the gaseous state, which quickly fills the area to be fumigated. This gas is pure and contains no contaminants. Formaldehyde gas spreads throughout an enclosed area, reaching all cracks and crevices. It is lethal to all viruses, moulds and bacteria.