This Explosion Proof Freezer has a CFC-free heavy-gauge steel cabinet construction and its foamed-in-place urethane insulation helps minimize operating cost while its spark-proof interior is easy-to-clean and corrosion resistant. CX4F-1B features a quiet, hermetically sealed compressor and CFC free refrigerants with adjustable leveling feet. This unit is specially designed for safe storage of volatile material in hazardous areas.