Hello. I had the same problems with the smell of smoke clinging to my heavy curtains and carpet.

Two things that helped me was first, put a glass of white vinegar in the room; this absorbs all residual smoke that my linger in house. Second, I cleaned the carpet with a steam mop (Vileda). Everyday for 1 week, then you can space the session. Maybe once every 3 days.

Plus of course other basics, like washing your curtains once a month, airing the rooms everyday for AT LEAST 30 minutes. And yes, Aroma diffuser with essential oils like Eucalyptus, Tea-Tree and mint helped a lot. But, know that this last hack won't work much if you do not allow an effective airflow.

Good luck to you. :)

You could also try Nature's Miracle, it's sold in pet stores mainly for urine odors. I use to be a heavy smoker, and to get the horrid stench out of my furniture someone recommended I use the nature's miracle in a spray bottle mixed with water, I sprayed the furniture til it was pretty wet but not drenched, open the windows and let it air dry, I did have to do it twice to get the smell out BUT it worked, the stuff is amazing. Good Luck, let us know what you use and how it works for your carpet.....

Insurance companies and car dealerships use ozone machines. You can pay for a company to come out and put the machines in or you can buy an ozone machine from Amazon.

The odor is not only in the carpet but the pad also. Remove carpet & pad.

There is a spray on odor remover ( neutralizer??) that works well. It is called Atmosclear. It is on the pricey side so wonder if the cost would be too high. I have used it and had good results with it. Wonder if they make a version to use in a carpet cleaner?

I thow out anything with cigarette smell. Including wall to wall carpet. I'm just too sensitive and nothing ever fully gets the smell out.