Across International 250C UL 18 Shelf Max 7.5 CF 5 Sided Heating Vacuum Oven 220VAT09 series digital desktop vacuum ovens feature a 0. 9 cubic foot easy to clean stainless steel chamber with a large dual layer tempered glass safety window and small footprint. These ovens can greatly reduce drying time by maintaining a consistent vacuum level within the chamber. Every one of our vacuum ovens goes through a 2 time 24 hour vacuum leak test, and is 100% quality controlled in New Jersey or Nevada before leaving our facilities.