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aspiration pumps for medical applications and collection bottles for aspiration pumps; air compressors for medical applications; air filters for medical air compressors and pumps; air driven medication nebulizers; ultrasonic medication nebulizers; aerosol masks; peak expiratory air flow meters and replacement parts therefor; namely, mouthpieces and record cards; oxygen systems for medical applications and parts therefor; namely, oxygen concentrators, replacement sieve beds for oxygen concentrators, oxygen cylinders, cylinder carts, carrying cases, oxygen cylinder regulator valves, oxygen valve wrenches, oxygen tubing, oxygen tubing connectors, nasal cannulas and oxygen humidifiers; humidifiers; vaporizers; water filters for humidifiers and vaporizers; medication atomizers; powder blowers; syringes; irrigators; and continuous positive airway pressure (CPAP) respiratory therapy systems and parts therefor; namely, air blower, tubing, non-rebreathable valve, carrying case, air filter, power failure alarm, mask, mask headgear and mask connector