Air purifier

Development History of Air Purifiers

The concept of air purification originated from fire-fighting applications.   In 1823, the Dean Brothers invented a smoke-protection device. In 1854, charcoal was added to filters, improving air-cleaning performance.   During World War II, HEPA filters emerged, and by the 1980s, home air purifiers became popular for removing multiple pollutants.

Composition and Working Principle

Modern air purifiers typically consist of a micro-fan, air filter, and water tank.   They use composite purification, combining passive and active methods. Polluted air circulates through filters and may undergo ionization or other treatment.   Key technologies include activated carbon adsorption and ion filtration.

Functions and Advantages

• Removes particulate matter (PM2.5, pollen, dust)

• Purifies gaseous pollutants and odors

• Sterilizes and disinfects air

• Improves allergic symptoms and enhances indoor comfort

• Boosts HVAC efficiency and protects human health

Types of Air Purifiers

• By Working Principle: Passive, active, hybrid

• By Particle Removal Technology: Mechanical filter (effective for fine particles), electrostatic precipitator (low resistance but possible secondary pollution)

Selection Considerations

When choosing an air purifier, consider main pollutants, room size, filter quality, CADR/CCM ratings, energy efficiency, noise level, brand, and after-sales service.   A good air purifier usually offers high CADR, high CCM, high energy efficiency, and low noise. 

Why Baoquan Zhijie

Baoquan Zhijie provides MOSFETs, IGBTs, BLDC drivers, and power modules for air purifiers.   Our solutions combine energy efficiency, quiet operation, and long-term reliability, helping manufacturers meet growing global demand for smart and healthy indoor air solutions.