Air purifier development road.

Posted on 七月 11, 2018 by olans228

Air purifier development road.

In 1823, John and Charles Dean invented a new type of smoke protection device that allowed firefighters to avoid smoke during firefighting.

In 1854, a man named Johns Tenghaus made new progress on the basis of his predecessors: through several attempts, he learned that adding charcoal to the air filter can filter out harmful and toxic gases from the air. .

During World War II, the US government began research on radioactive materials. They needed to develop a way to filter out all the harmful particles to keep the air clean and allow scientists to breathe, so the HEPA filter came into being.

In the 1950s and 1960s, HEPA filters were once very popular. HEPA is a filtration standard that has a filtration efficiency of more than 99.97% for 0.3 micron particles, which is a single filtration efficiency. In an air purifier, the HEPA-compliant screen wind resistance is too high to be applicable.

In the 1980s, the focus of air purification has shifted to air purification methods, such as home air purifiers. Past filters are very good at removing malodors, toxic chemicals and toxic gases from the air, but they cannot remove mold spores, viruses or bacteria, and new household and office rooms use air purifiers to clean not only toxic gases in the air. It can also purify the air and remove bacteria, viruses, dust, pollen, mold spores, etc. from the air.

Since the late 1990s, with the increasing demand for deodorization and deodorization, the field of air purifiers has created an “antibacterial heat.” The air purifier also used a photocatalytic filter element in 1996 to improve the sterilization and deodorization performance.

After 2002, due to the spread of SARS, the new influenza epidemic, etc., there is a growing demand for anti-virus for air purifiers. Developed and equipped the air purifier with “streaming energy” technology. The air purifier uses a decomposition (oxidation) filter to capture bacteria and viruses.

In 2008, in addition to countermeasures to remove harmful substances from the air, the air purifier added a “humidification function” to meet the need to eliminate room drying.

As of 2013, most of the air purifiers on the market, especially air purifiers below 10,000 yuan, cannot be called “HEPA”.

In 2014, the carbon core filter technology was first used in the air purifier industry.