The Handheld Nebulizer Compressor comes with compressor, medication cup, AC power adapter, air hose, elbow, mouthpiece, and mask. Handheld Nebulizer CompressorSKU: NEB200 $79.95PriceQuantity*Add to CartPRODUCT INFOBuilt-in filtrationPortable (small and weighs only 1/2 pound)Runs on 4 AA batteries or AC power adapterQuiet (60dBA)Fine particle size (approximately 3 microns)Nebulization rate: 0.25 ml/min or moreMedication capacity: 6 ml (maximum) / 2 ml (minimum)