Dust Capacity
The volume the vacuum's bag or canister holds before emptying or replacement is required. Measured in liters (residential) or quarts (commercial).
Higher dust capacity means longer intervals between bag changes or canister emptying. Miele Complete C3 holds 4.5 liters; Dyson V15 holds 0.77 liters; ProTeam Super Coach Pro 6 holds 6 quarts.