What is ion on a fan?

An ion fan is a type of air purifying device that generates negative ions to improve the air quality by removing harmful pollutants, allergens, and odors. These fans use an ionizer that releases negatively charged ions into the air, which then attract positively charged pollutants like dust, pollen, pet dander, and smoke. These pollutants become heavier and fall out of the air, making the air fresher and cleaner to breathe. Ion fans are commonly used in homes, offices, and other indoor settings to improve the air quality and reduce respiratory problems. Some ion fans also have additional features such as HEPA filters, carbon filters, and UV light technology for enhanced purification.