What is the difference between UV Air Purifiers and air filtration?
UV air purifiers use ultraviolet light to neutralize airborne bacteria, viruses, and mold, while air filtration physically traps particles like dust and allergens. Many systems combine both for more complete air treatment.
Written by Paul Coen, Owner
What is the difference between UV air purifiers and air filtration?
UV air purifiers and air filtration tackle indoor air quality in two different ways: filtration physically traps particles like dust, pollen, and pet dander as air passes through a filter, while UV purifiers use ultraviolet light to neutralize biological contaminants like bacteria, mold spores, and viruses. Filtration catches things; UV purification disables things.
Why the distinction matters
A filter can be rated extremely fine and still let some microorganisms pass through if their particle size is small enough, and it does nothing to actually kill what it doesn't catch — it just holds it in the filter media. A UV light, on the other hand, doesn't physically remove dust or larger particles at all; it only affects what passes directly through its light exposure.
Why many systems use both
- Filtration handles dust, pollen, pet dander, and other particulates
- UV light handles bacteria, mold, and viruses that filtration alone may miss
- Combined, they address both particle removal and biological contamination
Our technicians can evaluate your home's air quality needs and recommend whether filtration, UV purification, or both make sense — call LJ Refrigeration Co. at (480) 948-5004.