How much do you know about air purification?

How much do you know about air purification?

Air purifiers, also known as air purifiers, absorb, decompose or transform various air pollutants (usually including dust, pollen, odor, bacteria, allergens, and decorative contaminated formaldehyde, etc.) This is a capability. Improving air freshener products

Origin of Air Purifier

Air purifier originated from the use of fire in 1823. John and Charles Dean invented a new type of smoke protection device, which allows firefighters to avoid smoking in case of fire.

In 1854, a man named Johns Rittenhouse made new progress on the basis of his predecessor’s invention. After many attempts, he learned that air filters were added to charcoal to remove harmful and toxic gases.

During World War II, American scientists developed the once-popular HEPA filter.

Air purifier model

At present, air purifiers have different design methods.

It is only a passive and active purification method in the model.

Passive cleaning is the use of fans to filter air through the built-in screen and inhale it into the machine, which can play the role of dust, odor and toxic gases in the main filter. If deodorization filters, HEPA filters and other HEPA filters with relatively high cost can disinfect and decompose toxic gases, especially to prevent secondary pollution.

Active purification includes silver ion technology, negative ion technology, and photocatalytic technology. As our general negative ion technology, the main principle is that electrostatic discharge (ESD) can absorb dust and concentrate dust in the air. Oxygen negative ion photocatalysis, light irradiation, and strong oxidation ability are used in semiconductor technology to release free radicals.

Air Freshener

Actually, the so-called active and passive air purification is a general statement, and there are five internationally recognized air purification principles. It is a physical, electrostatic, chemical and anionic compound. Through physical purification filters, such as dust, odor, pollen, and other large particulate matter, as well as harmful substances such as allergens, viruses, formaldehyde, we need to clean up chemical purification.

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