[Hoosierb4]

Originally Posted by CarlR33

Most newer modern homes are pretty air tight so I would be concerned with this practice because where does the ozone your adding to your indoor air go if you do not air out the home when your return? The HVAC fan is just recirculating the indoor air through the (inexpensive) air filter (usually not HEPA) and getting any outdoor fresh air from? You would better off using a HEPA type of HVAC filter to purify your indoor air vs. constant ozone treatment, IMO. Ozone | Indoor Air

You certainly don't want to use "constant" ozone treatment. Just a couple hours when needed. We do air out the house when we return after running the machine.. The ozone dissipates fairly quickly after each treatment. It isn't perfect, but works better than anything else I've tried.

[BrianL99]

....

[BrianL99]

Originally Posted by CarlR33

You would better off using a HEPA type of HVAC filter to purify your indoor air vs. constant ozone treatment, IMO. Ozone | Indoor Air

HEPA filters generally do not remove odors.

Can an Air Purifier Remove Odors from Your Home? - Molekule [There are 100's of other sources, also]

[Steban]

Originally Posted by Switter

I purchased a house here in the villages and there is a persistent smell it. The realtor and the inspector both thought it was because the house had sat empty for a long period of time and that once I moved in the smell will go away. I have been here six months now and it hasn't gone away.

I was talking to the neighbors, and they told me the lady who lived here was a chainsmokers and she had pets but with her declining health she was not able to get the pets out to go to the bathroom

When she passed, an investment company bought the property and basically remodeled it. I heard they had to grind the concrete floor down because of pet urine.

Supposedly before I bought the place they had the ducts cleaned.

I assume the smell that's in the air is because of cigarette smoke. I am thinking about having a company do an a professional ozone shock treatment. It costs $1350.

Based on my research, it looks like this is a pretty effective route to go but I was just wondering if anybody has ever had ozone shock treatment done in their house and what the result was.

Limited-time deal: Ozone Generator 15,000mg/h, Commercial Ozone Machine, High Capacity Ozone Machine Odor Removal, Home Ozone Generator for Car, Pet, Smoke, Home, etc (Black)
https://a.co/d/5rZ8HxB

$50 do it yourself following all safety precautions.

[hvac877]

You may want to have the air unit coil and fan blades flushed and cleaned with HVAC coil cleaner. The problem with smells in the unit are probably from a build up on the internal insulation that really cannot be cleaned it is made of fiberglass. They do make odor eater for that type of problem, HVAC Odor Block Nu-Calgon

[paulat585]

Originally Posted by Switter

Thanks for the info. That was my initial plan, just buy a 5 gallon bucket of kilz oil base primer and paint the whole house. Maybe I'll try that first. That's only a couple hundred bucks and some elbow grease. Unfortunately, they had already painted the walls so I'm not gonna be able to do any scrubbing. I'm only going to be able to spray a couple coats of primer on the walls and ceiling.

I used to use flea bombs to get rid of cigarette smell in rentals. There are directions on the package for how to use. It worked, but that was 20 years ago. Not sure if they still use the same formula.

[spd2918]

Ozone machines are cheap and somewhat effective, but urine and smoke smells will creep back.

[nn0wheremann]

Originally Posted by Switter

I purchased a house here in the villages and there is a persistent smell it. The realtor and the inspector both thought it was because the house had sat empty for a long period of time and that once I moved in the smell will go away. I have been here six months now and it hasn't gone away.

I was talking to the neighbors, and they told me the lady who lived here was a chainsmokers and she had pets but with her declining health she was not able to get the pets out to go to the bathroom

When she passed, an investment company bought the property and basically remodeled it. I heard they had to grind the concrete floor down because of pet urine.

Supposedly before I bought the place they had the ducts cleaned.

I assume the smell that's in the air is because of cigarette smoke. I am thinking about having a company do an a professional ozone shock treatment. It costs $1350.

Based on my research, it looks like this is a pretty effective route to go but I was just wondering if anybody has ever had ozone shock treatment done in their house and what the result was.

Get furnace filters that have an activated charcoal element, and run the furnace fan constantly for a few days.

Seal all painted surfaces with a primer like Kilz. Seal all the concrete with epoxy sealant. Or, call in a disaster recovery service.

Sorry, but you were taken to the cleaners.

[TheWatcher]

Some good suggestions for overall cleaning and retreating surfaces. Do those to get rid of the bulk of the offending odor chemicals and seal surfaces. Specific odors need different treatents to neutralize the molecules causing the smells that are left.Try the 'Pooph' suggested for animals and take a look at the line of Odercide products to neutralize specific odors, smoke, etc.

Odercide:
Home Owners

[Freehiker]

Originally Posted by It's Hot There

Buy your own machine.

The Best Ozone Generators of 2024 - Top Picks by Bob Vila

I have one that we used in a previous home where the owners smoked. They smoked outside, but their clothes made the closets smell. Ozone generator completely fixed it.

[Malsua]

Originally Posted by Freehiker

I have one that we used in a previous home where the owners smoked. They smoked outside, but their clothes made the closets smell. Ozone generator completely fixed it.

I am a Home Inspector and I do repairs as well. One of my services is Ozone treatment. It works. No doubt about it, but you need to have enough of it, for long enough for it to work. It requires the home owners to vacate usually at least 6 hours.

If the smell persists afterwards, it is being re-generated by something and there is active mold growth or something going on.

[BrianL99]

Originally Posted by Malsua

I am a Home Inspector and I do repairs as well. One of my services is Ozone treatment. It works. No doubt about it, but you need to have enough of it, for long enough for it to work. It requires the home owners to vacate usually at least 6 hours.

If the smell persists afterwards, it is being re-generated by something and there is active mold growth or something going on.

I bought a Condo that was smoked in for a couple of years. After closing, I went to the Condo, turned on my Ozone machine and left it running for a few days. Smell gone, never to return!

[Malsua]

Originally Posted by BrianL99

I bought a Condo that was smoked in for a couple of years. After closing, I went to the Condo, turned on my Ozone machine and left it running for a few days. Smell gone, never to return!

Ozone will degrade plastics, so there's a balance .

No doubt it works. That said, it is a health hazard, so it needs to be used tactically. I'd be concerned that a condo with a shared wall would experience some spill over into an occupied spaced.

I guess it also would depend on your machine. I have some machines that produce fairly high levels of Ozone. After they run, it's not uncommon to smell it when walking up to a home.