The air purification device features central air conditioning electrostatic Wei-environment: a high dust holding capacity, long cleaning cycle; 2 fan coil energy efficient air purifier, drag unchanged, the wind changed; 3 fan coil efficient sterilization. air purifiers designed to meet Ministry of Health standards; 4. Long life, low life-cycle cost; 5 resistance to dust generated is small, long cleaning cycle; 6. itself power consumption of about 10 ~ 15W, drag ≤20Pa ensure ventilation air conditioning system will remain basically unchanged; 7. security in line with national standards and EU standards; 8-voltage power supply of harassment, harassment power radiated disturbance field strength (EMC) are in line with national standards. Electrostatic purification technology mainly flat electrical wire and honeycomb-type forms. Compare Wei a central air-conditioning air purification device using two electrostatic technology: flat electrical wire electrostatic technology, honeycomb-type electrostatic technology both technologies have efficient sterilization, dust, removal of harmful gases three functions. Flat electric wire of Electrostatic Technology: ionization region operating voltage> 8000 V, the collecting area operating voltage> 4000V, can capture more than 95% of the 0.5 μm particles (colorimetric), killing 90 percent of fungi and viruses, 70% of bacteria and 60% of dust mites. Not use high-pressure water cleaning equipment direct cleaning, can be equipped with automatic cleaning function. The electrostatic tablet technology mature technology, uniform discharge fan coil air purifier price, service life and air handling units are similar; honeycomb type electrostatic technology: 12 kV DC high voltage static electricity, to catch sintering, the positive and negative range large (to 11mm), the collecting plate for the honeycomb, can maximize the dust collection area; disposable dust removal efficiency of 98 by 9% fan coil air purifiers offer, disposable sterilization efficiency of 94 69%. and has a high removal of harmful gases function, product purification efficiency of school efficiency, the device can directly tap water or 0. 35MPa or less high-pressure water washing, rinse directly in the air handling units, no self-cleaning function. Honeycomb electrostatic discharge pin end technology through rounded, uniform discharge, reduced efficiency does not occur, the service life of up to 20 years