Home purifiers come in various ranges depending upon the size of homes. UV air purifiers effectively remove airborne pathogens by inactivating, neutralizing, or killing them with UV light rays. These cleaners are placed on air conditioning systems that circulate the airflow and keeps the air clean. But if a person has severe allergies, then HEPA filters can be used as it has an efficiency of 99.99% and can eliminate particle size as small as 0.3 microns. For small rooms, portable UV air purifiers effectively clean the air.
In contrast, centralized air purification systems can be installed to circulate clean air throughout the house. UV air purifiers have germicidal UV lamps that attract pathogens and kills them. It eliminates the smell and odor from the atmosphere keeping the air fresh.