Fantastic life improvement for those with allergies - great design, great functionaliy
After doing quite a bit of research, I settle on this purifier as a test. I have two heat pumps and live in a high humidity area, and our house is older with older carpet and lots of people, so allergens abound. My wife is pretty severely allergic to most any environmental allergen, and I am allergic to dust and mold, as wells as some others. Nothing severe, but enough that it was draining my energy level from day to day, which I eventually noticed, root-caused to allergies, and decided to purchase and install the Halo as a trial remedy.
Installation is very easy; you are provided the 110VAC to 24VAC transformer. Combined with any plug, you can wire it directly to a nearby outlet (the Halo should be always on, not come on only with the unit - doing so increases the life of the UV bulb). You are provided with a template to cut out a circle in your air handler's plenum (the outlet for air to go into your ducts), which you can do with a screwdriver, a hammer, and some snips. If you do it right, you can push the unit in, flush to the duct, plug it in and walk away.
The difference in the was both immediate and palpable. Everything felt easier to breathe and somehow lighter. My wife and I both have much more energy and need less sleep. So far, it's been a wonderful life change for us.
The downside is, of course, the lifetime of the bulb which is 2 - 3 years and apparently must be replaced with the entire cell (as a consumer and an engineer, I both abhor and appreciate this). We'll see how long it actually lasts, but it has totally been worth it so far.
Verified purchase: YesCondition: New