I have a great little airbnb.... Only thing is :-(

[Sean Wilkinson]

It smells like smoke....

It was previously an apartment with animals and and a smoker. We did a pretty major rehab on the place pulling up all flooring, doing an a.chemical wash on the wall. Tried doing a kills primer, but when that didn't seem to work we did a shellack oil base primer on everything including the subfloor. We then primed and painted and put new floors in and did everything else to finish the remodel. There was still a faint smell so we ran a ozone machine for days in there... The smell STILL came through so we put wall air fresheners and charcoal bags trying every possible thing we could think... But the smell persists!!! Of course with airbnb, reviews are critical and we have gotten multiple people that mention the smell.

Any other ideas would be greatly appreciated!