Deluxe Nebulizer Piston Style Powerful piston pump is efficient dependable and quiet * Compressor delivers 30 psi at maximum pressure and 10-14 psi operating pressure * Liter flow range: 4-8 LPM * Produces a particle size of less than 5 microns * Sound pressure level: 53 dB * Comes complete with ampule for nebulizing mouth piece and user manual * 5 Year limited warranty *