Tank capacities vary by model, ranging from about 23 ounces up to 1 gallon. Common sizes cited include 23 oz, 32 oz, 64 oz, 0.5 gallon, and 1 gallon.
Weights in the reviewed models range roughly from 8.2 to 18.5 pounds. Many models are described as compact, lightweight, and designed for easy carrying and storage.
Cleaning path widths in these models span about 3 inches up to 12 inches. Smaller portable spot cleaners typically have 3–7 inch paths, while larger upright machines are around 10–12 inches.