TECHNICAL Dust mops, sweeps, damp mops, wet mops. Operate vacuum cleaners, wet/dry vacuums, carpet steam extractors, upholstery machines and other equipment. Cleans stairs, hallways, corridors, walls, moldings, boards, outside steps, terraces, roof decks, window sills, exteriors and other designated areas. Cleans venetian blinds, radiators, grills, intake and exhaust vent