Aeration of the water is an important factor of well-being inhabitants of aquariums and garden ponds. The quality depends on many factors aeration welfare of the ecosystem of the pond. The product adopt electromagnetic linear motor, high efficiency, simple construction, smooth operation without oil lubrication and low energy consumption. Adopt SF1 new-type wearing-resistant material for the piston and cylinder, which is of low power consumption, large air output and high air pressure. The case is made of high-quality ZL102 aluminium alloy with streamline design, and heat-dissipation is more effective.