DeVilbiss Pulmo-Aide - Compact Portable Compressor/Nebulizer is perfect for use at home or on the go. The Compact Pulmo-aide is a small unit that allows for therapy anywhere you need to go. AC powered air compressor that provides a source of compressed air for home health care and respiratory therapy use. The compressor is used in conjunction with a jet(pneumatic) nebulizer toconvert specific medications into an aerosol form for inhalation by a patient. The device can be used by adults or supervised children. See DeVilbiss Compact Pulmo-Aide - Replacement Air Inlet Filter (DEV3655D601) for refill filters.