Is it safe to keep a dry cleaning bag on the couch overnight?
Based on 1 peer-reviewed studyhome
Verdict: Avoid
No. Dry cleaning solvents off-gas for hours after you bring the clothes home.
What's actually in it
Many dry cleaners still use perchloroethylene (PERC), a solvent linked to liver and kidney damage and classed as a probable carcinogen. Clothes smell strongly when they come home and off-gas into your living space for hours.
What the research says
A 2025 review in Rev Environ Health highlights textile chemical regulation gaps in the U.S., including dry cleaning solvents.
Remove the plastic bag, hang the clothes in a garage or mudroom for several hours before bringing them inside. Better: switch to a "wet cleaning" or CO2-based dry cleaner, which skips PERC.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Unfinished business: formaldehyde exposure from uniforms and textile regulation. | Rev Environ Health | 2025 |
What to use instead
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