BioShieldUV® 72W HVAC UV Light Air Purifier Light Bulb - Air Filter UV Lamp for Air Conditioner, Whole House Dual UV UVC Light in Duct Filter, UVC Light for HVAC AC Air Conditioner

Very pleased. Very easy to install, includes hole saw in the exact size. Plugs into 110 volt outlet. An LED indicator for each light socket lets you know that each bulb is working. Other reviews stated these bulbs last a few thousand hours, I just plan on buying new bulbs in a few years, when needed. Might even buy now & store nearby. These are the correct wavelength, do the research UV-c is the way to go. Could be luck of the draw, but I installed these while I was very sick, no other family member got sick.

To make the story short - I've started getting musty smells 6 months ago - I thought it was spoiled food or dirty socks of my kids somewhere in the house, but then I smelt it from the AC vents. I cleaned the in-house coils with foam and installed two sets of these lights right after I received these - one above the coils and another behind the coils in front of the blower which is also facing the drain pain (that's where a lot of stink accumulates) - took me about 40 minutes for both (I did very quality work and took my time). I'm grateful they ship you the saw bit and a drill so all you need is just a screw driver gun / drill.. Very easy install - just measure correctly.Results - the musty smells are gone (Yahoo!!!) and the air doesn't smell at all! Very impressive The air feels cold and clean! One other huge difference I noticed which is very impressive, is before the install when we were cooking the cooking odor would travel throughout the whole house naturally and sucked via the return and then the whole house would have that odor, now after the install that cooking odor is gone - I think it's the bulbs clear that smell..Overall, for a bit over $ 100 (for two units) I get high air quality - VERY impressed and pleased. Thank you!

This looks like a product well made and packaged with great care. It has been running for a few days but it's hard to tell how effective it is. In my situation I had only one small area it would work, and it was going to be a tight fit. I was glad to see the slotted screw holes, they can make installation mush easier except the screw head are too big to take advantage of this feature. That being said I think I'm going to order a set for the return air plenum

Easy to install and still working great.

Terrific. Easy to install. Makes a difference. Musty smell gone.Oddly the unit doesn't end up where you think it will, if you assume like me that the template is the size of the unit. Never ran into that before, but it made no difference in my case. But note that before you cut holes.I'll update my review over time, once I see how durable it is.

I started to smell burning (not ozone) a week or so after installing it. Then it went away, but it only went away because the fuse popped. The ballast had burned out. I contacted the seller, and they sent me another unit as soon as they had one. I installed it today fingers crossed it works.

We bought this light awhile back and barely got it put in. I enjoy it and feel a difference in my home. I always could smell a dirt smell in my home, and I couldn't get rid of it. We turned this sucker on, and I don't smell it. My home is kind of closed off only because most of our windows are painted over so its hard to open all windows. Due to that we use air purifiers, and we decided to try this, and it works. It helps clean the air that flows in the ducts and works for what it is! Only downfall is the brightness in the hallway we see but it's not too bad. It is a decent size and I'll be buying extra bulbs just in case they go out. Buy it, you'll be happy you did!

The media could not be loaded. THIS IS A MUST IN YOUR HOME!This is the best product to ever install in your furnace to improve the air quality! Hands down the best!The best investment I’ve ever made in protecting my family.1) Install it on the air intake ductwork as you will not want it fluctuating indirectly temperature from high or low hitting the bulbs and yes, you must change these lights bulbs about every six months. And install it away from any way that kids could look or see the light as this UV rated.2) If your kids come home SICK from school, from all the cooties that they pick up at school, the next day they will be ready to go back to school like nothing never happened.Even us as adults. Numerous times while I’m at work I have felt like a flu or a cold coming on and the next day after being at home, i’ll wake up the next day as if nothing ever happened.3) If you have any mildew in your home, consider it gone. I have an English bulldog and his eyes were always full of the crusty and all sorts of nasty gunk around his eyes. The minute I install this product it was gone. The vet was telling us that it’s his eyelid hair and no, it was the air quality in the house result of musty and nasty mess coming out of the vent.