On October 27th, the “2022 Room Air Conditioner Fresh Air Health Technology Forum” hosted by Zhongjiayuan (Beijing) Testing and Certification Co., Ltd. was held in an online mode.
Zhang Xiao, Deputy Director of the Testing Institute of China Household Electrical Appliances Research Institute, Luo Gang, Deputy Secretary General of Beijing Consumers Association, Cao Bin, Associate Professor, Ph.D. Supervisor, Young Changjiang Scholar of the Ministry of Education, School of Architecture, Tsinghua University, Zhongjiayuan (Beijing) Testing and Certification Co., Ltd. Zhang Ziqi, Director of Heat Pump Air Conditioning Room of Refrigeration and Air Conditioning Testing Center, Li Liyan, Secretary of Refrigeration and Air Conditioning Apparatus Sub-Committee (TC46/SC1) of National Household Appliances Standardization Technical Committee, Zhang Weichao, Director of Health Appliance Testing Center of China Household Appliances Testing Institute, Senior Air Conditioning Category of GfK Zhongyikang Research Manager Liu Long, Zhongjiayuan (Beijing) Testing and Certification Co., Ltd. Health Appliance Testing Center Engineer Wang Di / Refrigeration and Air Conditioning Testing Center Engineer Yang Ruili, Health Home Grid Huo Yujia, Hisense, Midea, Haier, Daikin, Oaks, Changhong, Representatives of Samsung, TCL, Xiaomi, Johnson Hitachi and other companies, and more than 20 media representatives attended the meeting. The meeting was chaired by Xu Zhengang, deputy director of the Institute of Testing and Measurement Technology of China Household Electrical Appliances Research Institute.
Luo Gang, deputy secretary general of Beijing Consumers Association, pointed out in his speech that the fresh air conditioners on the market are showing a continuous explosive growth. Many air conditioner companies including mainstream brands are making every effort to promote fresh air air conditioners. After cleaning, no wind and other functions, it is another flagship technology that leads the trend of the industry. With people’s attention to the health and safety of the home living environment, especially during the epidemic, products with health functions such as sterilization, fresh air, and purification are increasingly favored by consumers. The promotion of the evaluation standard and certification of the fresh air function of the room air conditioner is of great significance to promoting the development of industry norms and protecting the rights and interests of consumers.
Cao Bin, associate professor, Ph.D. supervisor of the School of Architecture, Tsinghua University, and Young Changjiang Scholar of the Ministry of Education, shared the research progress of air supply technology for home appliances at home and abroad. , desktop fans, ceiling fans, etc.) and air conditioners (on-hook, cabinet, etc.) air supply mode and its comfort effects are becoming more and more concerned, there is broad development space and potential in this field; The wind terminal product test system can quantitatively evaluate the airflow dynamic characteristics of different types of wind sources, and support the research and development and technical improvement of air supply equipment.
Li Liyan, secretary of the Refrigeration and Air Conditioning Appliance Sub-Technical Committee (TC46/SC1) of the National Household Appliances Standardization Technical Committee, introduced the development progress and standard framework of the industry standard “Room Air Conditioner Fresh Air Function Evaluation Specification”; this standard is the first in the domestic household air conditioner field. The industry standard for fresh air air conditioners, which was formulated at the beginning, stipulates the “terms and definitions, product classifications, technical requirements, test methods, signs and descriptions” involved in the fresh air function of air conditioners.
Zhang Weichao, director of the Health Appliance Testing Center of China Household Appliances Testing Institute, analyzed the industry test data of the fresh air health function of room air conditioners in 2021-2022; through data analysis, she pointed out that about one-third of the products are installing fresh air ducts, etc. The fresh air volume measured when fittings is obviously lower than the nominal value; the fresh air PM2.5 filtration efficiency test results are better, basically higher than 80%; the sterilization rate test results are also better, most of which are higher than 70%; The test results of cleaning and sterilization performance vary greatly, and the test results of about a quarter of the products are lower than 70%; in terms of air purification function, the particle removal technology is relatively mature, and most of them can meet the standard requirements, but the results of formaldehyde removal are uneven. , is currently at the median level, and the realization of purification technology compatible with high CADR and high CCM in the future is still a technical difficulty for the industry to overcome.
Liu Long, senior research manager of GfK’s air conditioner category, analyzed the market situation of fresh air conditioners from the perspective of the home appliance industry. According to the data, as of January to September 2022, the health sterilization and fresh air of air conditioners will usher in an outbreak period, the number of healthy sterilization air conditioner brands will increase to 43, and the number of fresh air air conditioner brands will increase to 12; Introducing the fresh air air conditioner market, he pointed out that fresh air air conditioners have grown rapidly in the past three years. Compared with 2021, the share of fresh air air conditioners in the online and offline markets has grown significantly, and the mid-to-low-end cabinet market has performed prominently, and it is more popular in the northern region. It is estimated that the annual retail sales of fresh air air conditioners will reach 7 billion in 2022; in the future, increasing fresh air volume and increasing air purification and sterilization functions will be the core competitiveness of the industry.
Wang Di, engineer of the Health Appliance Testing Center of Zhongjiayuan (Beijing) Testing and Certification Co., Ltd., shared the fresh air of the room air conditioner, the fresh air volume involved in the health function, PM2.5 filtration efficiency, clean air volume, cumulative purification volume, and fresh air noise. , microbial removal, self-cleaning and other technical indicators of test equipment and test methods, along with the release and implementation of the new national standard GB/T18801-2022 “Air Purifier”, the CADR and CCM test methods of air-conditioning products will also usher in certain changes. ; and introduced the certification of “Excellent Performance of Fresh Air Air Conditioning”, which is the industry’s first certification for the fresh air function of air conditioners. Various technical indicators and parameters are raised above the basic limits of the current industry standards. , put forward an evaluation that takes into account the performance of high fresh air volume, low noise, and air purification.
Yang Ruili, engineer of the Refrigeration and Air Conditioning Testing Center of Zhongjiayuan (Beijing) Testing and Certification Co., Ltd., introduced the technical indicators and evaluation methods involved in the comfort of room air conditioners. She pointed out that the comfort of air conditioners is comprehensively evaluated from multiple dimensions, such as rapid heating and cooling, direct blowing resistance, quietness, sleep comfort, no wind, and soft wind. Dissatisfaction Percentage (PPD)”, “Vertical Temperature Difference Dissatisfaction Rate (PD)”, “Drying Sensation Index (DR)”, “Temperature Fluctuation”, “Temperature Uniformity”; and shared national standards for evaluating comfort and certified technical specifications.
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