What is the difference between air purifier and air sterilizer?

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The terms "air purifier" and "air sterilizer" are sometimes used interchangeably, but there is a subtle difference between the two:

1. Air Purifier: An air purifier is a device designed to improve indoor air quality by removing various contaminants and allergens from the air. It typically uses one or more filtration technologies, such as HEPA (High-Efficiency Particulate Air) filters, activated carbon filters, or electrostatic precipitators, to capture and trap particles, dust, pollen, pet dander, and other airborne pollutants. Air purifiers primarily focus on reducing the concentration of particles in the air, leading to cleaner and fresher air.

2. Air Sterilizer: An air sterilizer, on the other hand, is specifically designed to kill or inactivate microorganisms in the air, including bacteria, viruses, fungi, and mold spores. It utilizes various technologies, such as ultraviolet germicidal irradiation (UVGI), photocatalytic oxidation (PCO), or plasma, to sterilize the air. Air sterilizers primarily target microorganisms and work to create a healthier environment by reducing the risk of airborne transmission of infections and improving overall air quality.

In summary, while both air purifiers and air sterilizers aim to improve indoor air quality, air purifiers focus on removing particles and allergens, while air sterilizers primarily target microorganisms. However, some devices on the market may combine both purification and sterilization technologies, offering a comprehensive approach to air quality improvement. It's important to consider your specific air quality needs and choose a device that addresses your concerns effectively.

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