Retail packed * Ultra compact design makes it extremely portable * Weighs only 3.3 lbs * Powerful piston pump is efficient dependable and quiet * Maximum pressure: 35 psi * Liter flow: 5-6 liters/minute * 5 Year Limited Warranty * Comes complete with 1 NEBKIT 500 packed in box * ELECTRICAL REQUIREMENTS: 120Vac 6OHZ * PARTICLE SIZE: Less Than 5 Microns * MAXIMUM PRESSURE: 30-35 PSI * OPERATING PRESSURE: 16 PSI * UNIT DIMENSIONS * 5.5 x 7.4 x 4 * WEIGHT * 3.3 Lbs * OPERATION HUMIDITY AND TEMPERATURE RANGE * 50�F-104�F 30%-95%RH * STORAGE HUMIDITY AND TEMPERATURE RANGE * 13�F-140�F 30%-95%RH