Indoor Air Quality.

[Don Ocean]

I was getting some prices today from Johnstone and a couple of others for Ultraviolet Duct systems. Johnstone tells me they have only sold about 6 all year. A couple of years ago, they were all the rage. We do have a lot of people with breathing problems that require top filter systems etc due to an aging population. We also have a radon Gas problem as the entire state sits on decaying granite. Along of course with the usual mold, some of it black. I am curious what other area's are doing to curtail virus, spores and to give a better IAQ for our less healthy oldsters etc. I have installed a number of these items including ultraviolet over the years. Do any of you folks install much of that any more? This is a serious problem as most of us never make it past 90 years old. Thats a long time to labor unhealthy lungs.

[Jim Dandy]

Ozone generators are cheaper and way more effective for killing bacteria.

O3 is great stuff!

[makolber]

UV light does nothing for radon, I'm sure you know that.

I installed an outside air intake into the return duct of my furnace. A *small* amount of the return air is pulled in from outside. Yeah, I know I'm paying some more for heat bacause of this but the air in my home is pretty fresh in the winter so I think it is a good tradeoff.

Mark

[Don Ocean]

Radon is treated by sealing basements etc. But it still roams around in the open air. ;-p

Actually that is code here. We have to bring in 10% outside air to mix with the supply air. It originally started out as 26% by International code. We do use equipment to transfer outgoing heated airs energy to incoming air etc.