Clean quietly and efficiently during the day with our 70 dBA or less machines to help businesses keep energy costs down and maintain their LEED certifications. SC412 is measured at 69 dBA. We commit and deliver an exceptional cleaning experience backed by certification from the Carpet and Rug Institute (CRI). SC412 is certified bronze. Complete any job with tools to clean hard surfaces, carpet, furniture and above-floor areas. Comfortable harness and lightweight design (11.5 lbs.) allows for effortless operation.