BROAD Clean Air Technology Co., Ltd, was founded in 2005, provides air purifiers, fresh air ventilation machines. The fresh air machines are with 99. 9 % PM2.5 filtration efficiency and 80 % heat recovery efficiency. The air sterilization effect of air purifiers reaches 99. 99 %. BROAD’s products have been frequently used in important venues and renowned events such as China government office Zhongnanhai, BOAO Forum for Asia. Company Strength: 34 years professional experience in clean air products.