Below is a list of Vacuum Chambers manufacturers from Andover, Massachusetts. Vacuum chambers use a vacuum pump to remove air and pressure from within a sealed compartment for the purpose of evaluating the effects of a vacuum on objects, materials or components. Environmental test chambers such as vacuum chambers are used by manufacturers to test a product for flaws and malfunctions before it is released to the public. Having a well tested product ensures less cost in terms of warranty and guarantee reimbursements.