Our METHER fridges and freezers are constructed intrinsically safe. Maximum temperature stability and explosion proofness. When storing flammable or explosive substances.This product is applicable to places with temperature control requirements in explosive environments such as petrochemical industry, laboratory, metallurgy, medicine, textile, food, bioengineering, pharmacy, warehouse, aerospace engineering and military industry; Zone 1 and Zone 2 hazardous gas sites; IIA, IIB, T1-T4 explosive gas or steam environment.