Process-wide air purification technology makes an important contribution to epidemic prevention and control

Whole-process integrated technology and complete equipment schematic
Johns Hopkins University real-time statistics show that as of 12:35 p.m. Beijing time on July 30, the cumulative number of new crown confirmed cases worldwide exceeded 17 million, with a cumulative death of more than 667,000. Several studies at home and abroad show that droplet transmission, aerosol transmission and contact transmission are the main ways of transmission of the new coronavirus, the first two modes of transmission are air as a medium, attached to the air suspended particulate matter for transmission. This mode of transmission of the virus makes the problem of cross-infection between health care workers and patients in the early stages of the outbreak prominent, making it more difficult to prevent and control the outbreak, in addition to the fact that most people spend almost every day indoors during the outbreak, which also makes it both important and urgent to strengthen indoor air pollution control and stop the spread of the virus.
Chinese Academy of Engineering
Hou Li'an is one of the pioneers of China's special pollution prevention and control technology, long-term commitment to the field of environmental engineering scientific research, engineering design and technical management. In view of the spread characteristics of the new coronavirus, Hou Li'an
led the team to cooperate with a number of domestic colleges and universities, focus on scientific research, actively participate in the fight against the epidemic, in the field of indoor air purification has developed a variety of anti-epidemic "gods", in order to ensure environmental safety has made an important contribution.
the characteristics of aerosol transmission of the new coronavirus, Hou Li'an
believes that the most important and urgent is to strengthen indoor air pollution and transmission blocking work. In order to solve the problem of air pollution in the affected areas and protect health care workers from infection, Hou Li'an
proposed a solution to the air quality assurance of hospitals that respond to different epidemic prevention needs, providing effective technical support for the complete elimination of disease-caused microorganisms in the air in the affected areas. The main function of the air purifier is to effectively block the suspended particulate matter in the air, so as to achieve the goal of purifying the air.
Hou Li'an
led the expert research team from Xi'an University of Construction Science and Technology, Shanghai University and other institutions to carry out emergency research on air purification and killing technology in the disease area, integrating mature applications and innovative technologies to develop "indoor air killing" - New wind system guarantee - negative pressure out of the wind inactivation "full process air purification technology and equipment - "cloud sterile air purifier", and put into the first line of anti-epidemic use, the technology for effectively blocking the spread of viruses and bacteria in the disease area provides a strong scientific and technological support.
"cloud-type sterile air purifier" as a special period of air purification equipment stationed in the new coronary pneumonia disease area, its powerful function is enough to refresh people's awareness of the past air purifier. The air purifier to Hou Li'an team independently developed "cloud-based technology", chlorine dioxide disinfection and ultraviolet disinfection and other technologies as a supplement, will be a number of technical reasonable combination, with dual killing technology to ensure that pathogens are thoroughly inactivated treatment, to make up for the shortcomings of a single technology. Not only that, this purifier does not need filter material, high purification accuracy, can remove dust in the air, PM1, PM2.5, droplets and other fine particles, purification technology has reached a cutting-edge technical height.
In addition to air purifiers, Hou Li'an
also put forward the "people's housing to negative pressure ward new technology", the technology uses advanced "source new wind purification - indoor functional materials sterilization - air disinfection - emissions of fatigue killing" integration concept, in a very short period of time with common equipment, low-cost housing into a ward with negative pressure and disinfection functions, can effectively solve the problem of insufficient capacity of the disease area. After achieving a series of scientific research achievements, Hou Lian
also led the team based on the results of the new coronavirus prevention and control research, formed a more complete research report, and participated in the preparation of the Ministry of Housing and Urban-Rural Development issued by the Office, Residential and Medical Environment Epidemic Prevention Design and Epidemic Environmental Security Operation Guide, for public buildings indoor air environment epidemic prevention design and indoor air safety during the outbreak provides a strong guide.
Science and technology is the most powerful weapon of human disease
the human victory over the epidemic can not be separated from scientific development and technological innovation, but also inseparable from scientific advice and decision-making, during the epidemic, Hou Li'an
to play their own professional advantages, for the outbreak prevention and control and resumption of production and active advice.
On February 16, Hou Li'an attended a working meeting of the network of expert groups of the Guangdong Indoor Environmental Health Industry Association, at which he introduced the research progress of scientific and technological research projects such as "Air Quality Assurance System for direct killing of viral microorganisms in the air" in hospitals in affected areas, and suggested that "new construction, alteration and conditional Hospitals to add air quality assurance system" to air in-place killing (UV-03) technology and graphene functional materials and other full-time air virus active and passive killing technology facilities into the first line of anti-epidemic
, to provide a protective barrier for front-line medical personnel.
At the beginning of March, in view of the transmission characteristics of the new coronavirus, Hou Li'an
joint experts suggested that all areas in the process of gradual resumption of production should strengthen indoor air pollution and transmission blocking work, and put forward "the current outbreak prevention and control of our country to a good situation, but the outbreak prevention and control can not relax for a moment, strengthen indoor air pollution and transmission blocking research and application, cut off the virus aerosol transmission, still necessary" this was a far-sighted view at that time.
the outbreak, Hou Li'an
team has donated materials to Wuhan, Xingyi and other anti-epidemic front lines, including more than 1000 sets of air purifiers, new fan and other equipment. The People's Hospital of Fuyang District of Xingyi City, Hubei Province, is a fixed-point hospital for medical treatment of new crown pneumonia, the hospital said in a letter of thanks to Hou Li'an
expert team: "In this war 'epidemic' without bystanders, Hou Li'an
team actively donated materials, and provided free of charge the team's 'new crown pneumonia' epidemic prevention and control environmental protection series of independent innovation technology, rallying together to fight the epidemic." "