The NB500 Heavy Duty Piston Nebulizer is a robust and dependable solution for individuals seeking powerful respiratory therapy at home. Engineered for heavy-duty use, this nebulizer combines strength with efficiency to provide effective aerosol medication delivery. The particle size created by our VAT bottle is around 2.07 μm (MMAD) tested by Cascade Impactor. Compared to most bottles in the market, our proprietary bottle ensures more efficient and effective performance. Mouthpieces and masks for adults and child included