Air Purification Systems

Filtration is passive. Air passes through a medium and particles are physically trapped. Purification is active, treating the air stream as it moves.

That lets it act on things too small or too biological for a filter to hold, plus growth on wet surfaces inside the equipment. They solve different problems, so the honest answer is often both, and sometimes only the cheaper one.

Not necessarily. If your concern is dust, pollen and dander, good filtration may be all you need, and it is the cheaper of the two by a clear margin.

Purification earns its place when the problem is musty odour from the vents, growth on the coil, or smells travelling between rooms. Those are the cases a filter cannot resolve however dense it is.

Because the evaporator coil is deliberately cold and wet. Condensation forming on it is how your system removes humidity from the air, so the dampness is the equipment working correctly rather than failing.

In a Florida climate with near year-round runtime that surface stays damp for months, and damp plus dark plus organic dust is how mould and bacteria establish themselves.

It depends entirely on what you are trying to solve, and anyone naming one technology before asking about your property is selling rather than diagnosing.

Coil irradiation targets growth on the coil. In-duct systems treat circulating air. Oxidation-based treatment is generally chosen where odour is the main complaint. The finding should pick the product.

In-duct purification operates while the HVAC system runs, since it needs air moving past it to treat that air. In Florida that is most of the time, so practical coverage is good.

Coil treatment is a partial exception, because it acts on a surface rather than an air stream. If treatment during long idle periods matters to you, say so before choosing a technology.

It treats the growth, but if the underlying dampness remains, conditions still favour regrowth. That is the honest limitation of the product.

Lasting results usually need the moisture addressed as well: humidity control, correct condensate drainage and coil cleaning alongside purification. We would rather say that now than have you install one product and find the smell back next summer.