Eye-Vac Canister The Eye-Vac canister is very convenient, bagless and does not require maintenance outside of dumping when the status indicator full light is on. Simply remove the lid and empty debris into the trash and the job is done. The Pre-Motor Filter sits in the lid of the canister and twists in and out of the lid for cleaning. Ensure the filter is flush with the lid to close the canister properly. The canister holds 6.2 liters worth of debris and is designed to compact debris tightly with the suction of Eye-Vac's motor.