Summit Air has redefined how air movers and fans are produced with this MAX STORM. This blower is produced with a thoroughly durable Roto-molded polyethylene shell that can withstand all the abuse/use that is handed out in the environments that these are used in. They are lightweight, draw low amps, and move large volumes of air.When running a professional Janitorial or carpet cleaning business, you"ll need multiple fans that can be left behind at a job and picked up later, for the ultimate in efficiency. Simply start a job in the morning and come back late in the afternoon to pick up your fans, and inspect the job. Leaving an individual"s home with clean/dry carpets will make them a repeat customer for life!