Can I remove thirdhand smoke from my home?

The Short Answer:

Thirdhand smoke is the chemicals left behind when someone smokes tobacco. Thirdhand smoke is unhealthy for people and pets. It can stick around for a long time in homes and cars. It gets into your body if you inhale, swallow, or touch the chemicals. Getting rid of it is really hard and can cost a lot of money.

If people only occasionally used tobacco in your home, you may be able to clean and remove much of the thirdhand smoke. If people frequently used tobacco in your home and it is heavily polluted with thirdhand smoke, it is probably impossible to remove the residue without major and expensive renovations to your home.

image says yes and no and has icons of cleaning homes and removing polluted items

The Long Answer:

Thirdhand smoke is the chemical residue from tobacco smoke. It is also called “tobacco smoke residue” or “stale tobacco smoke.” The chemicals in thirdhand smoke are toxic to humans, especially children. It can linger for years in dust and on household surfaces. It can also become embedded in carpets, furniture, clothes, and building materials. It is difficult and expensive to remove.

Removing thirdhand smoke from your home includes two approaches: cleaning household objects and cleaning your home’s structure. Getting rid of thirdhand smoke residue on household objects, like dishes, toys, and blankets, is straightforward. Cleaning carpets, furniture, upholstery, mattresses, books, and other personal belonging can be complicated if not impossible. Removing thirdhand smoke from structural elements, such as walls, floors, ceilings, doors, cabinets, and airducts, is difficult and expensive, especially if there is a lot of thirdhand smoke in the home.

you can't remove ths from mattress, but you can silverware
you can clean ths from toys but not rugs and carpets
you can clean thirdhand smoke from plates but not furniture

Cleaning Household Objects

  • Clean clothes, toys, and bedding in a washing machine. Depending on how polluted the fabrics are, you may need to wash them multiple times.
  • Clean kitchenware and washable toys in a dishwasher. Depending on how polluted the objects are, you may need to wash them multiple times.
  • Use diluted vinegar or basic cleaning solutions, such as Simple Green, to wash other objects and surfaces.
  • Consider replacing objects that cannot be cleaned, such as mattresses, rugs, or large furniture.

The Challenge of Cleaning Structural Surfaces

  • If you hire a professional (e.g., painters, remediation experts), they typically use Trisodium Phosphate (TSP) to clean surfaces around the home. TSP is a hazardous chemical, and it requires specialized tools and personal protective equipment. TSP cannot remove thirdhand smoke residue embedded in porous materials like wood panels, particle board, and drywall.
  • Alcohol-based primers and paint may trap thirdhand smoke residue on a wall. It may remove the tobacco odor (at least temporarily), but it does not remove thirdhand smoke chemicals.
  • Ozone generators remove tobacco odors from the air by changing odorant into odorless compounds. Ozone generators create new chemicals and do not remove chemicals embedded in materials.
  • Masking tobacco odors with fragrances also does not remove the chemicals. It simply covers up unpleasant smells.
  • In homes where smoking has taken place over years, thirdhand smoke chemicals can soak into surfaces and become embedded in walls, flooring, carpets, and HVAC systems. Once the chemicals are embedded, cleaning the surface is not enough– the residue will resurface and re-emit back into the air. You must remove all of the thirdhand smoke, even what has soaked into surfaces in your home.
  • If thirdhand smoke is embedded in building materials, the only way to guarantee the residue is gone is to completely remodel by removing and replacing all walls, flooring, air ducts, etc.

Do you have more questions about the toxic legacy of tobacco smoke, how it affects human health, and what we can do about it? Learn more here.

Updated: February 2024


Ask This Old House. Understanding Thirdhand Smoke. Home Safety Videos. Retrieved from:

Bahl V, Jacob P, 3rd, Havel C, Schick SF, Talbot P. Thirdhand cigarette smoke: factors affecting exposure and remediation. PloS one. 2014;9(10):e108258. doi: 10.1371/journal.pone.0108258. PubMed PMID: 25286392; PMCID: 4186756.

Matt GE, Quintana PJE, Hoh E, Zakarian JM, Dodder NG, Record RA, Hovell MF, Mahabee-Gittens EM, Padilla S, Markman L, Watanabe K, Novotny TE. Remediating Thirdhand Smoke Pollution in Multiunit Housing: Temporary Reductions and the Challenges of Persistent Reservoirs. Nicotine Tob Res. 2021;23(2):364-72. doi: 10.1093/ntr/ntaa151. PubMed PMID: 32803265; PMCID: PMC7822102.

Matt GE, Hoh E, Quintana PJE, Zakarian JM, Arceo J. Cotton pillows: A novel field method for assessment of thirdhand smoke pollution. Environ Res. 2019;168:206-10. doi: 10.1016/j.envres.2018.09.025. PubMed PMID: 30317105.

Matt GE, Quintana PJ, Zakarian JM, Fortmann AL, Chatfield DA, Hoh E, Uribe AM, Hovell MF. When smokers move out and non-smokers move in: residential thirdhand smoke pollution and exposure. Tob Control. 2011;20(1):e1. doi: 10.1136/tc.2010.037382. PubMed PMID: 21037269; PMCID: 3666918.

Sleiman M, Destaillats H, Smith JD, Liu C-L, Ahmed M, Wilson KR, et al. Secondary organic aerosol formation from ozone-initiated reactions with nicotine and secondhand tobacco smoke. Atmospheric Environment. 2010;44(34):4191-8. doi: 10.1016/j.atmosenv.2010.07.023.

Tang X, Gambier C, López-Gálvez N, Padilla S, Rapp VH, Russell ML, et al. Remediation of Thirdhand Tobacco Smoke with Ozone: Probing Deep Reservoirs in Carpets. Environ Sci Technol. 2023;57(27):9943-54. Epub 20230627. doi: 10.1021/acs.est.3c01628. PubMed PMID: 37366549.

More Must Read Stories

Share This
Tweet This
Email This

Stay Informed

Get the latest thirdhand smoke news and research delivered straight to your inbox, or follow us on social media: