As in recent years, the rapid development of China's food industry, sterile workshop, food safety problem to occur. Most prone to food hygiene and quality of the food problem is the total number of colonies exceeded the warranty period and mildew problems, solving such problems in addition to improving the product itself sterilization techniques and equipment outside the sterile workshop in vitro reagent, the need for food processing workshop air disinfection prevent microbial secondary pollution, but also need to pay attention to air disinfection method, if the method is not correct you can not achieve the desired disinfection. The so-called secondary air system, its main feature is the back to the indoor return air handling equipment is only partially mixed with fresh air, this part of the return air is called a return air, return air through the surface of the new heat exchanger or cooling spray chamber After drying or heat treatment, and then treated with untreated cold air return the remaining secondary mixing. For most cleanroom pharmaceutical or other industries for aseptic sterile laboratory workshop, the room due to meet hot, wet load required ventilation, is often far less than the amount of ventilation required to meet the cleanliness of the room, so the only part of the return air with fresh air mixed into the air conditioning equipment for heat and moisture, and the remaining return air filter is only to make the required amount of ventilation purification and recycled back to the room to meet the cleanliness level. Therefore, secondary air system is pharmaceutical cleanroom or other purposes the most common type of air conditioning system. Sterile laboratory sterile workshop | Jinan blue bridge purification industry experts | Lianyungang sterile workshop offered by Blue Bridge decontamination Ltd. Jinan. Jinan Blue Bridge decontamination Ltd. (www.lanqiaopf.com) (www.lanqiaopf.com) Shandong Jinan, interior design leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Jinan blue bridge purification leadership with the staff warmly welcome all inquiries negotiations to create Jinan blue bridge purify a better future.