Nortech Vacuum Products are now part of the Guardair Corporation, and all Nortech vacuums are in the process of being rebranded under the Guardair label. Like Guardair, Nortech proudly manufactures their vacuums, hoses and other accessories in the United States. Nortech offers steel tanks in up to 55 gallon capacities, with quick and efficient compressed-air powered suction that can generate 63% more flow than single venturi models. Nortech vacuums are motor-less and can be used with ATEX ULPA filters for better air filtration.