Yes, air purifiers absolutely work—especially when sized and installed correctly. Whole house air purifiers are highly effective at reducing airborne particles like dust, pollen, smoke, and pet dander. Some systems go even further, targeting germs, bacteria, and odors. When installed by HVAC professionals like Radiant Plumbing & Air Conditioning, an air purifier becomes part of your home’s central air system, cleaning the air across every room for consistent, noticeable results.