The Checker Nebulizer is perfect and ideal for children. The unit comes in an attractive cab design which appeals to children. The filter is easy to replace and is located under the front hood of the cab, while the electrical cord is located under the rear hood of the cab. The Checker Nebulizer is very quiet during operation but has a powerful, dependable piston powered pump. The Nebulizer comes complete with: Ampule Mouthpiece Pediatric aerosol mask Tubing Two replacement filters Instructions. Features and Benefits Available in Yellow or Pink Child-friendly design to encourage therapy complianceEasy-to-replace filter is located under the front hoodElectrical cord located under rear hoodPowerful piston pump is efficient, dependable, and quietComplete with mouthpiece, pediatric aerosol mask, tubing, two replacement filters, and instructionsHood latch doubles as a cup holderProduct Specifications Actual Product Weight: 3.7 lbs Liter Flow: 8 LPM Maximum Pressure: 30 PSI Method of Nebulization: Piston Compressor Operating Pressure: 16 PSI Operating Relative Humidity: 30-95 Percent Operating Temperature: 50 to 104 deg F Overall Product Height: 7.7" Overall Product Length: 4.3" Overall Product Width: 11.8" Particle Size: 0.5-5 microns Power Requirements: 115VAC 60Hz Primary Product Material: Plastic Warranty: 5 Year Limited