Vacuum oven with 40-liter capacity featuring completely sealed argon-welded SS304 chamber with inlet and outlet ports for gas/vacuum. Double-walled construction with ceramic wool insulation to prevent heat loss. Temperature range ambient to 70掳C with thick inner chamber to handle 760mm Hg vacuum. Designed to achieve up to 760 mm Hg / 29 PSI / 1 atmospheric pressure. Door made of thick steel with transparent toughened glass and durable neoprene gasket with manual locking function.