Experts demand that it is generally recognized that with the support of air filtration and disinfection, improving indoor ventilation systems can prevent respiratory infections
Humans spend most of their time indoors, but air The degree of regulation of our breathing inside a building is different from the food we eat or the water we drink.This must be changed to reduce the spread of the disease and prevent the next time Pandemic.
39 scientists from 14 countries/regions pointed out in an article published in the journal Science that they claimed “paradigm shift” in fighting pathogens AirborneAs SARS-CoV-2, And it needs to be universally recognized that respiratory infections can be prevented by improving the indoor ventilation system.
Virology, medical expert, Spray Or air quality, requiring changes or standards to regulate ventilation, and the scale should be the same as other guidelines adopted in the 19th and 20th centuries to eliminate pathogens in drinking water and prevent infections in food.
They added that the paradigm shift happened when Edwin Chadwick’s 1842 health report led the British government to encourage cities to organize drinking water supplies and sewage treatment systems.
In the 21st century, the foundation must be laid to ensure that the air in the building is clean, and pathogens are greatly reduced, thereby contributing to the health of the occupants, just like the quality of the water we expect from the tap.
To this end, several key steps must be taken. They first confirmed that it is necessary to recognize the “global and continuing danger.” Respiratory tract infection Airborne to control risks. The signatory warned that although there is sufficient evidence, this has not been generally accepted.
They called on the World Health Organization (WHO) and other governing bodies to expand their guidelines on indoor air quality to include airborne pathogens, and recognized the need to control the risk of airborne infectious diseases Breathing. WHO recently ventilation This is an “important step”, but it does not capture this danger well.
In addition, national standards should be developed. They pointed out that some countries/regions have formulated indoor air quality regulations, but they are not comprehensive enough.
He said that for decades, architects and engineers have been working on the thermal comfort, odor control or energy use of buildings, while “infection control” has been ignored, except for buildings such as hospitals.
Therefore, the team requested ventilation Of buildings including larger Airflow, filtration rate and monitor Enable the public to observe the air quality in the shared space.
This does not mean that these spaces must become “biosafety facilities”, but that every building must be designed and operated according to its purpose and activities.
The author emphasizes that the key engineering measures are ventilation, filtration and support. Air disinfection.
The person in charge of this article, Lidia Morawska, a researcher at Queensland University of Technology in Australia, explained that although a detailed economic analysis has not yet been conducted, estimates indicate that the necessary investment in buildings to achieve this goal may be less than according to your centre Note, this is 1% of the construction cost of a typical building.
In March 2020 and June 2020, this international team asked the World Health Organization to recognize the need to control the risk of airborne respiratory infections. He also published an article in “Environmental International” in which he put forward recommendations to reduce the risk of airborne transmission of covid-19.