Large all heat exchangers detailed description Model: AHE-1000W, AHE-1500W, AHE-2000W, AHE-1500Z, AHE-2000Z, AHE-3000Z, AHE-4000Z, AHE-5000Z Features ● air volume range: 15000 ~ 50000m3 / h, for use in stadiums, theaters, entertainment plaza, shopping centers, underground car parks and other places large and extra large. ● Built-in high total heat recovery system design system unidirectional flow of fresh air, to take advantage of pollution carried by wind cold (heat) quantity of fresh air pre-cooling (heat), to reduce air-conditioning systems in order to achieve the new wind load. When fresh air is large, the energy saving advantages will be fully reflected. PM2.5 efficient air purification box detailed description Pu Ruitai PM2.5 efficient air purification box with Shanghai Baosteel fingerprint-resistant high-quality materials, beautiful style, unique structure, triple filter, you create the perfect environment to breathe. The first re-use nonwoven early efficiency filters ceiling unidirectional flow air system, the main filter more than 5μm dust particles, effectively blocking the invasion of mosquitoes in the air and visible dust. The second heavy activated carbon filter, using a cylindrical activated carbon unidirectional flow air system piping, dedicated to adsorption of formaldehyde, benzene and other hazardous substances and all other dozens of harmful gases and bacteria floating in the air. Having a smoke flavor, detoxification, deodorant, dehumidification, mold, sterilization, decontamination and other integrated functions, while absorption of harmful gases, kill mold, E. coli, Staphylococcus aureus, pus-borne pathogens, inhibiting epidemic spread of pathogens, elimination of indoor pollution. The third stage heavy use F7 high efficiency filter for PM2.5 filter out up to 90%, allowing you to stay away from PM2.5 hazards. By supporting the use of this product and the total heat exchanger, blower, etc., improve the new product line-up one-way air flow system, fresh air system, providing more healthy ventilation scheme. Easy disassembly means to facilitate the cleaning and replacement, usually only need to clean the filter to purge tank. Nanjing unidirectional flow air system _ Keao environment (certification) _ unidirectional flow air system provided by the Nanjing Environmental Engineering Equipment Co., Ltd. Keao. Keao Nanjing Environmental Engineering Equipment Co., Ltd. (www.njxfxt.com) is Nanjing, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Keao environmental leadership with the staff warmly welcome all inquiries negotiations to create a better future Keao environment.