Air systems, namely, air pumps and air pump controllers for inflating or deflating air mattresses

Attenuators composed of trims placed within industrial process control valves for use in reducing aerodynamic and hydraulic noise associated with drops in gas, vapor, or liquid pressure

pumps for pools and spas

Laminar flow cabinet hoods for laboratory use; laminar flow fan filter units for laboratory use

Medical tubing used for delivering respiratory gases; artificial respiratory apparatus and instruments, namely, continuous positive airway pressure regulators and positive pressure ventilation devices for regulating pressure and air and gas flow during a breathing cycle, monitors for monitoring respiratory pressure and air and gas flow delivered and exhaled during a breathing cycle and pulse oximetry devices; nebulizers; masks used for administering respiratory therapy and anaesthesia; inhale...

components of exhaust systems for marine vehicle engines, namely marine mufflers and exhaust pipes

Centrifugal pumps for swimming pools, spas, water parks, fountains, and ponds