Mintie Technologies Environmental Control Unit, 30" x 56" ceiling cavity
Used, in good condition, comes as you see it in the pictures.
The modular ECU4 Ceiling CavityTM is a collapsible, portable containment unit designed to control dust and airborne contaminants during building maintenance or other projects above the ceiling cavity. Perfect for quick, multiple entries, it can also be securely set up for longer-term jobs. Its standardized, single-unit size makes it an easy, convenient alternative to poles and plastic sheeting. Simply wheel it into place, extend it, and secure it to the ceiling.