DIY Filter Solution for an Evaporative Cooler, anyone?

If your general "info@" e-mail inbox is like mine, it is 95% SPAM but once in a while, as long as you catch it, there is an informed, well-crafted inquiry from a non-bot, who does their own research and wants to know more and do better.

Here is one such inquiry, from a reader regarding a filter for an evaporative cooler. I'll post both her initial e-mail and her follow-up to my reply, below. THANKS for any leads!

I need a suggestion. We just replaced our 17-year-old evaporative cooler with another one. Works great. 

I have found that the diffuser blows dust and dirt into the house. I cut a circular pad for each diffuser from a sheet of 24 in. x 36 in. x 1 in. Permaire Pad Air Filter by Natural Aire. The product is made of natural fibers and can be washed and reused. 

It does restrict the airflow and it does help with the dust.

Is there some product the I can use and cut myself that restricts the airflow less. I thought of cutting circles of aluminum screen, like that used for doors and windows, but I am not sure how well it will keep out the dust.

Any suggestions appreciated. I cannot find any answers to this on the web.

Thanks,

Pt. ii...

Thanks for your response.
 
I did find a Frost King foam filter for an AC that has a MERV rating of 0. It lets in a lot of air and is washable. Not expensive. Any suggestion that is either cheap or washable is good for me. (The Nature Aire product had a MERV 4 rating. I am going to save it and use it as insulation in the winter when I close the dampers.)
 
I had a kind of a fabric filter, a loose weave light synthetic material that eventually disintegrated a few years ago. Never found out what it was.
 
Someone suggested a cheap fiberglass filter, but cutting it and have the fiberglass particles float around did not seem like a good idea. The size of the circular ducts: 13.5 and 11.5 inches respectively.
 
Another person suggested using double pads as a way to halt the incoming debris and dust. I might try that next year.
 
I looked around on the site you gave me in the subsequent email, but did not find any mention either of the problem or a solution.
 
I know I am not the only one with a concern about the dust coming through the diffuser. Maybe it is something really obvious.
 
Thank you again,

Tags: DIY, dooling, evaporative, filter

Views: 211

Reply to This

Replies to This Discussion

Hello,  I'm probably confused, but I'd want to know where the dust and dirt are coming from.  It's not normal for these units to make this problem. Perhaps the pads are losing bits of fiber, or dirt on the roof, or construction/installation debris, or? Another thought is that some units have multiple fan speeds.  Slowing the blower could help also.

Yours,  Larry

Thanks, Larry!

You are probably not confused!

Apply skin, not a Band-Aid ... or something like that! :)

Best, Leslie

Have them call a HVAC contractor and install a filter system

Thanks Rich,

I hope they thought of that, but you are on to something.
I think I learn more doing things myself, but sometimes, truth is, contractors TEACH me more.

Best,

Leslie

Where is the duct for the evaporative cooler running.  Straight out into the room?  or through ducts in attic or the floor.  I've seen underslab ducting that had failed... and the dust was actually dirt that was being picked up from the ground that was formerly held back by sheet metal.   Sheet metal that had rusted and collapsed.

Since you are using an evaporative cooler, I presume that live in the drier western half of the US.   But  if you are actually in a more humid environment - remember that just washing the filters DOES NOT stop the growth of harmful bacteria and molds.   You need to encourage a replacement cycle also... don't try to reuse the filters until they literally fall apart. 

Have you looked at the size of the dust?  Is it pollen? Does it smell moldy...?

Thanks, Dennis, I'll pass this on.

Where are the supply runs located? Look to make sure supply runs are sealed. I would second having a contractor make a filter rack and use cheap fiberglass filters. Ones that look like plastic strands dribbled over each other. It will be less restrictive and the filters are so cheap it wont be cost prohibitive to replace monthly. 

Thanks for taking the time, Dennis and Daniel.

RSS

Forum Discussions

Exterior green cladding

Started by Luis Hernandez in General Forum. Last reply by Dennis Heidner 11 hours ago. 1 Reply

Faces & Places of HPC19

Started by Diane Chojnowski in General Forum Apr 5. 0 Replies

high rise humidity

Started by Steve Nations in HVAC. Last reply by Dennis Heidner Apr 3. 7 Replies

Follow the action at #HPC19

Started by Diane Chojnowski in General Forum Apr 2. 0 Replies

Unvented Roof Assembly

Started by Patrick Michaelyan in General Forum. Last reply by Wallacebastien Mar 30. 6 Replies

Technology and Customer Service

Started by Kelly Caplenas in General Forum. Last reply by Franco Oyuela Mar 25. 1 Reply

Latest Activity

Sean Lintow Sr replied to Robert Logston's discussion Mini-Crawl Spaces between City Row-Home's Conditioned Stories
"First off it is called an interstitial space - a crawl space is located in only one area of a…"
9 minutes ago
Dennis Heidner replied to Luis Hernandez's discussion Exterior green cladding
"Why do you feel the planks are too old?  Are they falling off themselves?  Cedar siding…"
11 hours ago
Al Tibbs shared Don Fugler's discussion on Facebook
13 hours ago
Daniel Baur-McGuire replied to Robert Logston's discussion Mini-Crawl Spaces between City Row-Home's Conditioned Stories
"This sounds like a job for AeroBarrier and AeroSealing. Both products will seal the issues from the…"
15 hours ago
Daniel Baur-McGuire commented on Joe Hughes's blog post Christine Oliver, M.D. – Odors, Multiple Chemical Sensitivities and More an MD’s Perspective
"One of the best building science podcasts! I have learned so much from listendign to this…"
15 hours ago
Anna Stern is now a member of Home Energy Pros Forum
16 hours ago
Pearl Certification posted blog posts
17 hours ago
tedkidd commented on Diane Chojnowski's blog post How to spur home energy upgrades? Persuasive assessment reports
"I was a respondent. The reports I saw seemed tailored to the things utility programs care about…"
17 hours ago

© 2019   Created by Home Performance Coalition (HPC)   Powered by

Badges  |  Report an Issue  |  Terms of Service