Respiratory equipment, namely, liquid oxygen stationary and portable reservoirs and stationary and portable oxygen concentrators being respirators for the prevention of accident or injury
Electrical and Scientific ApparatusMedical respiratory equipment, namely, liquid oxygen stationary and portable reservoirs and stationary and portable oxygen concentrators; air separators for separating a stream of air into its constituents, being nitrogen, oxygen, argon and other gases, for medical and veterinary use; oxygen generators being oxygen concentrators for medical purposes
Medical ApparatusAir separators for separating a stream of air into its constituents, being nitrogen, oxygen, argon, and other gases, for industrial purposes; oxygen generators for industrial purposes in the fields of environmental remediation, waste and water treatment, fish farming, and manufacturing; nitrogen generators for industrial purposes in the manufacturing, oil and gas power generation, food and beverage, automotive, and mining industries; packaged nitrogen systems primarily comprised of nitrogen generators for industrial purposes in the fields of fire prevention, emergency response, and marine transportation; nitrogen cylinder refilling plant systems primarily comprised of nitrogen generators and structural components in the nature of metal tubing and nozzles for industrial purposes; nitrogen production plants for industrial purposes in the manufacturing, oil and gas power generation, food and beverage, automotive, and mining industries
Environmental Control Apparatus