An air purifier is a device designed to improve indoor air quality by removing particles, pollutants, and allergens. These devices typically feature filters, such as HEPA filters, that capture dust, pollen, mites, smoke, odors, and other harmful agents, providing a cleaner and healthier environment.

They are ideal for people with allergies, asthma, or those who want to maintain a space free of air pollutants, especially in urban or poorly ventilated areas.

Additionally, some purifiers include additional features such as ionizers, UV disinfectants, and humidity control to provide greater air purification efficiency.