Dymax Air Pump Ap300 Dymax Air Pump Ap300  air pumps series is designed with advanced air-compressing system and multi-level muffler which produces extremely low noise. Special synthetic diaphagm is used to regulate steady air compression without the loss of efficiency. The Dymax Air Pump Ap300 comes with 4 dampers at the bottom of the housing so to reduce noise and vibration during operation. Outlet:</>1 WATT: 2.5W> Output:15-18 kph 1.5plm Other models are Dymax Air Pump Ap500 Dymax Air Pump Ap700