323. Air Filters Are Always Clean
28 Jan 2026 · 4 min
Derek Cole explores why HVAC filters look clean even when they're failing. Dirt causes most system breakdowns, but low-efficiency filters and leaky ducts let air bypass them entirely, making the problem invisible until something breaks.
Chapters
Foreign.
I'm Derek Cole, host of the Derek Cole Podcast and we believe in taking the time to explain how things work for your air at home or your business. And we also believe you deserve clean air in that home. And that is why we founded the Healthy Home Challenge. It's a five day online video series with daily emails, worksheets and even quick action steps you can take to protect you, your family and your co workers. If you haven't joined us yet, you can sign up. It's free to free five day access. You can go to Simmons One Hour Comm. You'll see a link to learn more about indoor air. You've probably known for a while that you need better indoor air at home or at work. After all, we spend 90% of our time indoors these days. Your breakthrough awaits at Simmons One Hour Comm. Now let's get into today's episode. Please listen closely and maybe even take some notes so you can remember these insights of home comfort and energy savings. And share this episode with three of your friends. Because we all need to share better ways to be more comfortable at home. Be sure to tag me or DM me on Instagram Derek Mcole so I can say hi. Thanks again for listening and let's begin.
Filter never gets dirty. That is not good. You could be having a couple things. One could be the filter you're putting in is so, so terrible. It's so bad, it's so thin that it's catching nothing as it comes through, right? So it's staying clean that way. Or it's just bypassing the return altogether and not going to the filter. Now how's that happening? So what could be going on is with your duct system, you could be losing so much of that is coming through the duct is breathing from the house. So it doesn't need to get the return because the house or the duct is so leaky that it's coming back to the unit through that method and not through the filter, which is what it's designed to do. The reason you want it going through the filter is because you want that cool condition, clean air coming back to unit, not the dirty, hot under the house and the attic air coming back to the system makes sense. So one of the big problems is dirt. So dirt is the cause of most breakdowns. And the reason being is because that filter at the point where it's supposed to filter that air before it gets into the unit, it's not doing that. It's not getting to the filter, it's not coming through the filter or if it is coming through the filter, the filter is not stopping it from getting through. That is also a problem. But yes, I've heard that quite a few times. You look at the filter, you're like, oh, it's clean. And then 30 days later, the filter, oh, it's still clean. Okay. After about two or three of those, you're like, wait a minute. There is a bigger problem because the filter is not getting dirty. So either we need to change the type of filter or we're having a problem where the air is not even getting to the filter or the unit because it's going through other paths to get there, which is also a problem.
Okay, I hope you enjoyed this episode of the Derek Cole Podcast. Tell some people about this episode. It's on each of us really, to spread the better ways to be healthier and more comfortable in our homes and workspaces. I'm asking you to be the dealer of positive and life changing messages in your circle of influence. Take a screenshot right now and share this screenshot and the link to this episode with three of your friends today. Share on social Media Use the hashtag Healthy Home. That's hashtag Healthy Home. We are always giving away shout outs prizes to our community. If you would like to help me personally then please rate and review on Apple podcast. Give us some stars. Leave a review because that stuff actually does help and I read all the comments. So my last thought for today Please remember you deserve better air at home and greater comfort at home. Don't settle for being uncomfortable for your heating air every single month. We are so thankful for having you here in our community and be sure to go deeper with us at simmons1hour.com.
Sam.
More from Derek


713. Fan "On" or "Auto"? The Thermostat Setting That Could Be Making Your Home More Humid


712. Why Is My Upstairs Always Hotter Than Downstairs? The Truth Every Homeowner Should Know