Respirators other than for artificial respiration; breathing apparatus for non medical use, namely, compressed oxygen and air cartridges sold as a unit with storage packs for the compressed oxygen and air cartridges; respiratory mask filters; pressure gauges; air flow switches; electric or electronic sensors for air quality; eyeglasses; spectacles, namely, goggles

'air':17,31,38,46 'apparatus':8 'artifici':5 'breath':7 'cartridg':18,32 'compress':14,28 'electr':41 'electron':43 'eyeglass':48 'filter':35 'flow':39 'gaug':37 'goggl':51 'mask':34 'medic':11 'name':13,50 'non':10 'oxygen':15,29 'pack':25 'pressur':36 'qualiti':47 'respir':1,6 'respiratori':33 'sensor':44 'sold':19 'spectacl':49 'storag':24 'switch':40 'unit':22 'use':12

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