Re: all the air filters I use questions , too much or OK etc.

[Guest guest]

Rhonda, Carl will know more but I will tell you what I do. I put a

filter on my cold air returns for the same purpose, to keep air and

also ducts clean. I was told about the air restriction caution but

I added an 8 " fresh air intake so that increased the amount of air I

am pulling in. However, now in summer I close fresh air intake

since it brings in too much humidity and it doesn't seem to be a

problem for air handler. I wouldn't put too tight a filter on cold

air return. If you have hepa or tight filter elsewhere in line,

maybe a MERV 8 would catch pet hairs etc. If you are talking about

registers that put air *into* room, I figure by the time air gets

there it is clean and I leave air handler run all the time so air

flowing out should keep them clean enough, so I put nothing over

those registers. If you have air handler go on and off though, dust

could settle down in there. My aunt used to put " cheesecloth " over

those registers. It just catches the big stuff and she cleaned

registers' catch area out when she cleaned room. I hired someone to

clean the ducts in her house and he said they were pretty clean, so

must have helped her.

>

> I had a plumber come over today b/c I'm having a whole house

> Whirlpool water filterization unit installed under my house. He