Air Compressors

Air compressors are used in conjunction with aerosol generators to provide air particle distribution or humidification for respiratory patients. Compressors are hooked up to nebulizers or humidifiers and provide a positive air pressure which helps to distribute aerosol particles or humid air to the respiratory patient.

Medical Specialties rents and sells 2 units, formerly manufactured by John Bunn and now produced by Graham-Field. These are the Bunn Silent Compressor Model 400A , shown below (Catalog # BNBA400A), and the Bunn Compressor Model 410A (BNBA410A). The units are identical except that the 400A has an exterior housing assembly which fits over the compressor and motor assembly which helps to dampen the sound of the compressor (hence the "Silent" moniker for this model).

Graham-Field (Bunn) 400A Compressor

They are powered by standard AC current, and have a regulator on the front panel which allows adjustment of the air pressure from zero to 100 PSI, which can be viewed on the pressure gauge on the front panel. These compressors can be used with hand-held nebulizers, heated nebulizers, dual-action humidifier/nebulizers, mist tents, high-output pneumatic nebulizers, and deluxe nebulizers with oxygen diluters.

Preventive Maintenance on Bunn Compressors:

Check unit for housing damage. Plug compressor into AC outlet. Attach compressor outlet port to 100 PSI pressure gauge using test hose (these were manufactured for Medical Specialties for this particular function). Replace air intake filter. Turn on compressor, making sure AC indicator light is illuminated, and move regulator from 0-100 PSI. The gauge on the unit and that of the exterior pressure gauge should match. Check unit for chassis leakage and resistance using electrical safety analyzer. Disinfect and clean unit.