Offers durablility, economy, and performance in a stylish new unit. It is small enough to fit in a 1/2 square foot desktop space, yet powerful enough to deliver a fast and effective aerosol treatment . Features: disposable, rayon fiber inlet filter for simple, cost-effective maintenance nebulizer parking post. operating pressure: 11-16 PSI , 35 PSI . operating flow rate: 4-8 LPM. product weight: 3.5 lbs . 5 year limited warranty.