With central air purifier social progress, scientific and technological development, improved living standards, followed by derivatives on air pollution getting worse. In recent years the world's climate, environment, national climate worsening environmental pollution, worsening air pollution levels can not be underestimated central air-purifying principle, although the country a punch, the government introduced a series of policies, customs, stop, and, turn many with contaminated properties business, but air quality is still poor, cloudy weather increased the number of successive overlapping, to give people work and live bring many difficulties inconvenience. 2013 air purifier favorable market, increased sales, it is sufficient to see the people on the air pollution, haze weather the fear and the desire to improve the ambient air. Dongguan City Environmental Technology Co., Ltd. after a technical innovation central air purification system parameters, disinfection and purification in semiconductor-based technology, all kinds of central air purifier: return air type purifier, pipeline cleaner, plug-light hydrogen ions purification , a ternary ion technology air purifier ① modular cabinet invention polymerization, in the domestic air disinfection and purification products in the first ternary ion technology. ② electron in a semiconductor fiction - voids and separation of composite core technology is the application of electric light and the combination of technology law, implement electronic fiction - complex and separation of central air-purifying gap, breaking the semiconductor catalytic efficiency. ③ Applied Optics lens amplification principle, invented a mirror funnel-phase reaction system, greatly increasing the irradiation intensity of the UV lamp, energy-saving and environmental protection, but also offers the potential for the semiconductor layer. Authorities believe the scientific community: indoor air pollution is the "Bituminous Coal", the third largest polluter "photochemical smog type" after contamination. Indoor air pollution and clean indoor environment is a major issue in the field of science, but also China's basic national policy, management of indoor air pollution is to implement China's "Twelfth Five-Year Plan", the highlight of pollution control work. Namely: Environment and Resource ---- local ambient air quality and safety protection and pollution control technology, public places, indoor air pollution control technology. How to prevent indoor air pollution, improve indoor air quality, it has become the scientists' research.