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Indoor air quality, without the sales pitch.
Filters, UV, dehumidifiers, sealed returns. Most of what's in your air is coming off the coil & out of the ductwork, so that's where we start, not with a gadget.
In order of what actually helps
- A filter that fits, changed on time. Free to fix, fixes the most.
- A clean coil. If it's black, nothing downstream matters.
- Sealed return ducts. A return pulling attic air pulls attic dust.
- Humidity under 55%. Over 60 is where things grow.
- A UV light on the coil to keep it clean between visits.
- A whole house dehumidifier, if the readings say so.
5 inch electronic air filters
An electronic filter, also called an electrostatic air cleaner, fits in a 5 inch cabinet at the air handler. As air passes through, it gives the dust, pollen & dander a small electric charge, then catches them on charged media, the same way a balloon rubbed on your hair picks up dust. It grabs much smaller particles than a regular filter without choking the airflow, & the media gets changed about twice a year instead of every month.
Why we use the REME HALO
There are a lot of air purifiers out there. We specifically install the REME HALO because it's the only one we've seen make a real difference for allergies in our customers' homes. It sits in the supply plenum above the coil & puts out hydrogen peroxide molecules that ride the airflow into every room. They are the same molecules the air outside has after a storm. They land on dust, pollen, pet dander, mold spores, bacteria & viruses, & break them down in the air & on surfaces instead of waiting for the filter to catch them. The LED version has no bulb to change & is rated for the life of the system. For allergy houses it is the single most noticeable thing we install after a clean coil. For a house that smells like the dog, same.
Some of it
IAQHALO REME LED, installed above the coil. The blue glow is the point. IAQA UV light inside the coil. This is the light that keeps the coil from growing anything between visits. IAQUnboxing a HALO REME LED. Registered to the house for the warranty. FiltersThe before. Two filters from one house. Everything that is not on these is on the coil.
From the gallery of gross



The air in the house goes over this. The gallery of gross is the indoor air quality page, honestly.
See the gallery of grossQuestions people ask
Think comfort. Think Aphex.
@thinkaphex
Same handle everywhere. Mostly attics.