Power Neb Ultra Nebulizer with Disposable Neb Kit. Unit Dimensions: 6.3″ (W) x 3.0″ (H) x 5.3″ (D). Particle Size: 0.5 µm to 5 µm. Maximum pressure: 30 psi. Drive’s smallest compressor neb weighs in at a mere 3.2 lbs. and provides a competitive edge price point for providers. Built-in neb kit holder for hands-free use. Delivers consistent particle size of <5 microns and fast treatment times. Complete with disposable neb kit. Powerful piston pump is efficient, dependable and quiet. Limited 5 year warranty. UOM: 1/EA.