Shandong factory direct XHQ fresh air ventilator - fresh air ventilation machine specifications. Sales Hotline: 0534-6350444 fresh air ventilator is a new ventilation equipment to polluted indoor air vented while fresh air ventilator will enter the indoor and outdoor fresh air, fresh air ventilators and other air purification different equipment, new air ventilator is an open loop system that can provide fresh outdoor air is filtered through the room, with enough fresh air, people can breathe indoors to high-quality, fresh, clean air These fresh oxygen rich air is conducive to human health. The new air system in modern society, is a pursuit of high quality of life, is the most effective solution for air pollution, I believe that in the near future, new wind ventilators will enter every household. How to choose fresh air ventilator? There are a few key points: 1. The new wind ventilators for the room with a small ventilation with heat recovery equipment. The main control parameters for the selection of air flow, static pressure loss, the outlet total pressure, input power, effective ventilation rate, exchange efficiency, noise and the like. 2. The new wind ventilators performance should meet the requirements of Table 1, the device corresponds to the nominal air flow heat exchange efficiency value of not less than the requirements in Table 2. 3. In general, when a new air temperature of about -10 ℃, the exhaust side frost may occur, can be set up in front of the air preheater unit. 4. The device should be chosen to meet the relevant requirements of other standards and specifications.