The exposure chamber is for mouse cages 28x19x15 inches (71x48x38 cm) and will fit 8 mouse cages (10.5×7.4.5 inches).

The picture shows two units placed together with locking wheels. The doors are removable and are held on with 8 cam lock fasteners and sealed with closed pore gasket material.

Flow through chambers is from one side to the other using holes in pipe designed to mix the smoke throughout the chamber. Minimum flow rate is 33 LPM for 15 changes per hour.