Currently, the problem of air pollution is directly affecting the health of many people. To know about the level of air pollution, we often rely on the air quality index (AQI).
AQI (Air Quality Index) is a daily report of air quality, used as a measure to know whether the surrounding air is clean or polluted, high or low pollution level. short. The AQI index according to the United States Environmental Protection Agency (EPA) is based on 5 parameters:
Ground-level ozone: Created when pollutants emitted by vehicles, factories.. chemically react with sunlight.
Molecular pollution: Assessed by fine dust index PM 2.5 and PM 10.
Carbon monoxide (CO).
Sulfur dioxide (SO2).
Nitrogen dioxide (NO2).
Some countries such as Canada, Malaysia, Singapore... have their own scale of AQI air quality index.
To create a safe air environment today in buildings, factories, houses ... install air filter equipment (Air filter) to create a clean and safe air environment.
An air filter is defined as an air filter, which is a device consisting of fibrous or porous materials that block and remove solid particles such as dirt, pollen, mold and harmful bacteria present in the air. air.
Picture of 1 filter system:
They are usually divided into 3 levels of filtration: Primary filter (pre-filter), Secondary filter (fine filter), HEPA/ULPA filter and comply with set standards.
With a team of highly skilled and professional staff, we advise and follow the requirements of customers! Hotline 093 143 54 54 - firstname.lastname@example.org. Air Purification Technology - A reliable supplier of air purification equipment for customers!