Patent ID: 7958652

Claim:
A method of drying a surface the method comprising: selecting a portable cleaning apparatus, including a base module with a suction nozzle, and a base module housing with an exhaust air outlet for discharging pressurized air, the suction nozzle including an opening located within the base module housing for extraction of air and liquid from the surface; coupling a plenum with the exterior of the base module housing, the plenum including a plenum outlet opening located externally of the base module housing; removing a mixture of air and liquid from the surface by applying suction to the surface through the suction nozzle while moving the base module along a first direction; separating the air and liquid; pressurizing the separated air; and exhausting the pressurized air through the exhaust outlet into the plenum, thence through the plenum outlet opening in a second direction transverse to the first direction along the surface away from the base module.