Air purifier program for schools and kindergartens
Author: Li Deng environmental protection
In recent years, the haze has become more and more serious, and the constant problem of campus air quality has made every parent feel scared. Although many kindergartens have not allowed babies to be outdoors, the children’s body is very fragile and the smog is pervasive. Whether indoor activities are really safe or not is still a question to be verified. Some experts have suggested using air purifiers on campus. Then, whether classroom kindergartens can use air purifiers, analyze them one by one.
As a special education place, the school must pass through layers of obstacles, first of all, safety issues. Because the traditional filter-type air purifier is bulky and cumbersome, it is generally required to be placed on the ground. This will make the classroom where the space is very cramped more crowded, and the safety hazards such as student bumps are hard to avoid. At the same time, due to the increased power of the traditional filter-type air purifier, if the whole school is turned on at the same time, it will cause serious load on the school line, which may cause potential safety hazards such as electric leakage and fire.
As an authoritative expert in the field of respiration, Zhong Nanshan, an academician of the Chinese Academy of Engineering, said that a person must breathe more than 20,000 times a day, and at least exchange more than 10,000 liters of gas with the environment every day. If the air is polluted, it will cause great harm to human health. He said that the main causes of indoor air pollution came from inadequate ventilation (52%), indoor pollution (17%), outdoor pollution (11%), biomass (10%), and building materials (3%). The sources of indoor pollution include carbon dioxide, pathogenic microorganisms exhaled by the human body, benzene, formaldehyde, and hydrazine produced by interior decoration, as well as dust mites on air-conditioning filters. He also stressed again the harm of smoking to the body.
Purification efficiency
Using the traditional filter-type air purifier, the window is not allowed to be ventilated indoors, but the concentration of carbon dioxide in dozens of students in the house will soon exceed the standard. It will be boring in the classroom for a long time, which is not conducive to the health of students. Increase the risk of cross-infection of the virus. After opening the doors and windows, the test was carried out again. It was found that due to the action of the fan, the flow of indoor air was driven, and the outdoor air-free smog air formed an obvious difference between indoor and outdoor pressure, which caused the outdoor polluted air to be poured into the room, thereby intensifying Indoor air pollution. Therefore, the application of the filter-type air purifier does not meet the national standard air quality.
2. Noise problem
The noise generated during the operation of the air purifier will destroy the classroom order and affect the learning effect. A few days ago, the Qizhong Yucai School in Jinjiang District, Chengdu, Sichuan Province was raised by the parents to remove the air purifiers installed for the students' classes, which caused parents' dissent. The Chengdu Jinjiang District Education Bureau reported that during the use of the air purifier, some students reported that the noise was loud and affected the study. Therefore, the school moved the air purifier to the teacher's office for preservation.
3. Post-maintenance issues
Fans plus filter-type air purifiers and fresh air systems require regular replacement of the filter screen. The maintenance cost is extremely high in the later period, especially the fresh air system. It also requires professional staff to clean up and the cost is high.
4. Important issues
During our 80% of our time indoor activities, indoor air quality is extremely important to our physical and mental health. When we are in a poor quality indoor activity, you will feel physical and mental exhaustion, heart, lung, brain and other injuries may cause All kinds of diseases, when your body is in a bad state, the virus is chasing you, the infection is mixed, the pain is poisoned, and the people in the air are very common. When you feel the state of learning, you don’t invest. Can not afford the spirit, and even feel sick, etc., which is closely related to the air quality in our room. At present, the outdoor air environment is not good. The method of opening the window and changing the air has no effect. There are various sources of transmission in the air. , bacteria, viruses, odors, etc., as well as other harmful particulate matter and pollutants, as these sources of pollution continue to propagate and spread throughout the room, traditional air purification technology has been unable to achieve the desired results.
The indoor air is continuously circulated, and the pollution sources are mainly common bacteria, formaldehyde, TVOC and other odors; humans produce high levels of carbon dioxide, such as high concentration of carbon dioxide, and water loss, resulting in {anoxia}, especially after turning on air conditioning. {Air conditioning disease}, transmission of infectious diseases, etc. (Coughing, flu, sneezing, etc.), while reducing learning efficiency, outdoor and indoor air, indoor pollution More directly threaten the health of human beings.
Indoor Environment and Health Roundtable Forum
Hou Li'an, an academician of the Chinese Academy of Engineering, believes that indoor air pollutants are widely sourced, diverse, and complex. The control of them is not only a matter of pollutant control, but also involves energy structure adjustment, economic development mode transformation, and construction materials. The quality of decoration and decoration materials and furniture supplies is therefore a top priority for the revision and improvement of the indoor air quality standard system.
Dai Zizhu, a researcher at the China Center for Disease Control and Prevention, said in his speech that China's evaluation of indoor air quality has not yet established a relatively uniform standard. Various departments have developed different standards. There are dozens of derived standards, which is not convenient. Indoor air quality management and guidance on architectural design. Dai Zizhu hopes that the state will legislate for indoor air quality, guide and standardize the formulation and implementation of relevant standards.
In the roundtable forum, Zhong Nanshan, Hou Li'an, Dai Zizhu and the executive director of the Guangdong Indoor Environmental Health Industry Association, Gu Shiming, etc., proposed to develop various high-quality air purifiers and fresh air equipment for the actual situation in China, and formulate practical and feasible plans. They believe that air purifiers and fresh air purification systems will usher in rapid development, but there must be major breakthroughs, relying on technological progress and long-term efforts of the industry.
Edda Air's environmental technology, Applied Physics, Chemistry, Biology and Environmental Engineering, created plasma air purification technology and successfully implemented Einstein's ionization theory. By simulating the natural air environment, the indoor air quality is significantly improved, and various harmful pollutants are effectively and quickly removed and decomposed. This is our belief that "the forest-like air can be enjoyed at home." Our technology solves many traditional problems such as activated carbon, photoion generators, ozone generators, high voltage static electricity, and photocatalysts. Our plasma air purification technology can effectively reduce dust in the air, neutralize and decompose pollutants in the air, disinfect bacteria, effectively control volatile organic compounds, and clean the air effectively!
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Shenzhen Lideng Environmental Engineering Co., Ltd.
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