477. Can I Spray Lysol in My Return Duct?
28 Jan 2026 · 3 min
A listener asks if spraying Lysol in an HVAC return duct kills mold. Lysol only kills germs where it touches directly and won't sanitize the whole system. Spraying chemicals can damage equipment, so UV light or professional cleaning works better.
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Does spraying a whole can of Lysol into your air intake actually do any good to eliminate mold?
Hey, everyone, 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. 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.
All right, so if you read the can of Lysol, I believe, and I haven't seen one in a while, but I believe it says, kills 99% of germs on contact. So is the contact being made throughout the system if you spray it in the return, which I think is what you mean by intake? No. So is it going to kill mold and stuff downstream?
No.
Now, it might take care of something right there in front of you when you spray it. Hey, I got a piece right there. It's dead.
It might do that, but it's not.
Going to filter through the unit and.
Go out through your system and sanitize the whole place. That is not going to happen. You have multiple problems. First of all, you spraying a chemical in the system, which is then getting to the unit, which could cause damage. So I would not recommend it on any scale. We have quite a few products to handle any kind of growth you may have, as well as clean your duck and sealing your duck and then taking care of your unit inside. We do it naturally, we do it with UV, Mother Nature kind of products. Okay? We don't use chemicals. We don't use anything that's harmful. Everything we use to clean your system is all natural.
So if you go outside, I think you guys probably heard this old thing about, you know, if you're in the woods, which. Which way is north? Well, north is the side with the moss on it. Why is that? Because UV or sunlight does not get into that side of the tree. That's why it's growing on it. So your unit, your system is the same way. You have a dark, damp climate and things that are start happening. So we take UV or the power of the sun and bring it into your system and shine light on those products and things don't grow anymore. So that's the simple way to do it.
I mean, you do it naturally.
You don't spray Lysol. You can if you want to. I think Lysol is pretty expensive. I'm not sure what the price is for a can. 3, 4 bucks a can?
Yeah, I don't know. But to answer the question, it will.
Kill what is on contact, which is going to be right in front of you. But no, it will not. It will not go downstream.
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 the screenshot and the link to this episode with three of your friends today. Share on social Media Use the hashtag Healthy Home. That's 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. It.
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