Quick Answer
PERC-free dry cleaning is professional garment cleaning done without perchloroethylene, the chlorinated solvent used in most conventional dry cleaning since the 1950s. Instead, cleaners use professional wet cleaning, silicone-based solvents, hydrocarbon solvents, or liquid CO2. The result is the same clean garment without the chemical smell, the residue, or the health risk that comes with PERC.
Key Takeaways
- PERC (perchloroethylene, also written PCE or tetrachloroethylene) is classified by the EPA as likely to be carcinogenic to humans by all routes of exposure.
- The EPA finalized a rule in December 2024 that phases PERC out of dry cleaning entirely by December 19, 2034. California banned it years earlier, on January 1, 2023.
- “PERC-free” is not one method. It is a category covering several different cleaning systems.
- Research has found PERC residue clinging to wool, cotton, and polyester after cleaning, and it builds up with repeat visits.
- Gentler solvents tend to be easier on dyes, beading, linings, and anything with structure to it.
What PERC Is, and Why It Is Being Phased Out
Perchloroethylene is a colorless, non-flammable chlorinated solvent. It dissolves oil and grease extremely well, which is exactly why the dry cleaning industry adopted it and stayed with it for decades. It works. Nobody disputes that.
The problem is what it does outside the machine.
The International Agency for Research on Cancer classified tetrachloroethylene as Group 2A, probably carcinogenic to humans, back in 1995. Occupational studies have linked exposure to bladder cancer in dry cleaning workers. The EPA also treats it as a neurotoxicant, with short-term exposure tied to dizziness, headaches, and eye and throat irritation.
Then there is the ground underneath the shop. A survey cited by California’s Department of Toxic Substances Control estimates that 75% of dry cleaning facilities in the United States have caused contamination at their site. Cleanups routinely run into six figures.
Regulators have moved accordingly:
| Milestone | Date | What it means |
| California statewide ban | January 1, 2023 | No PERC in any California dry cleaning operation |
| EPA TSCA final rule published | December 2024 | 10-year phaseout begins |
| New machines restricted | June 16, 2025 | Machines acquired on or after this date cannot use PERC |
| Full prohibition | December 19, 2034 | PERC use in dry cleaning ends nationwide |
So this is not a trend or a marketing angle anymore. It’s a deadline.
What “PERC-Free” Actually Means
Here is where it gets a little muddy for customers. PERC-free just means “we don’t use that one solvent.” It doesn’t tell you what the cleaner uses instead, and the alternatives are not identical.
| Method | How it works | Best suited for |
| Professional wet cleaning | Water plus biodegradable detergents, computer-controlled machines that manage agitation, temperature, and moisture | Most everyday clothing, suits, shirts, linens |
| Silicone-based solvent | A clear, odorless liquid that breaks down into sand, water, and CO2 with no harmful residue | Delicates, beaded and embellished pieces, color-sensitive fabrics |
| Hydrocarbon solvent | Petroleum-derived, gentler than PERC but slower and less aggressive on grease | General garments, though it is still a VOC |
| Liquid CO2 | Pressurized carbon dioxide used as the cleaning medium | Excellent environmentally, but very few shops have the equipment |
Most PERC-free cleaners run a combination, choosing the method by garment rather than forcing everything through one machine. That’s the part that actually matters for your clothes.
The Health Side: What Changes Without PERC
The obvious beneficiaries are the people working the machines eight hours a day. But there is a household angle that gets overlooked.
PERC does not fully evaporate off fabric at the end of a cycle. A Georgetown University study published in Environmental Toxicology and Chemistry found measurable residual PERC on dry-cleaned wool, cotton, and polyester, with concentrations rising after repeat cleanings. Silk was the one fabric that didn’t hold onto it.
That residue off-gasses. In your car on the drive home, in the closet, in the bedroom overnight. If you’ve ever pulled a garment out of the plastic bag and caught that sharp chemical odor, that’s what you were smelling.
Going PERC-free removes that from the equation:
- No solvent off-gassing indoors. Nothing releasing into closets, cars, or bedrooms after pickup.
- Better for sensitive skin. Fewer chemical residues sitting against the skin all day matters if you deal with eczema or contact dermatitis.
- Safer around kids and pets. Small bodies, low to the ground, near the closet floor. Worth thinking about.
- Cleaner indoor air. Especially relevant in Florida, where homes stay sealed and air-conditioned most of the year and indoor air just recirculates.
I should be fair here: for an occasional customer, PERC exposure from a few garments is low compared with what a worker absorbs daily. The case for switching is less about acute danger and more about eliminating an unnecessary exposure that has a perfectly good substitute.
What Your Clothes Get Out of It
This is the part people don’t expect. PERC is a strong solvent, and strong solvents are hard on fine materials over time.
Gentler systems tend to be kinder to:
- Dyes and color depth. Dark suits and navy blazers hold their color longer without repeated harsh solvent exposure.
- Natural fibers. Wool, cashmere, and silk keep their hand feel instead of going flat and papery after a dozen cleanings.
- Embellishments. Sequins, beading, and metallic thread stay attached. Adhesives used on trims don’t like aggressive solvents.
- Structure. Interfacings, shoulder pads, and canvas fronts in tailored jackets hold their shape.
And there is no lingering chemical smell, which means garments can go straight into the closet instead of airing out on a balcony for a day first.
For anything irreplaceable, this matters more than it sounds. A wedding gown with hand-sewn beadwork, or a designer piece going through couture cleaning, gets exactly one shot at being cleaned correctly. The same logic applies to leather and suede, where the solvent choice affects whether the finish stays supple or dries out.
PERC vs PERC-Free at a Glance
| Conventional PERC | PERC-free | |
| Solvent classification | IARC Group 2A, probable human carcinogen | Non-hazardous alternatives |
| Residue on fabric | Documented on wool, cotton, polyester | None from the solvent |
| Odor after cleaning | Distinct chemical smell common | Neutral |
| Effect on delicates | Harsher over repeated cycles | Gentler |
| Regulatory status | Banned nationwide after Dec 19, 2034 | Compliant |
| Site contamination risk | High, 75% of US facilities affected | Minimal |
How to Tell If a Cleaner Is Genuinely PERC-Free
Plenty of shops call themselves “green” or “organic.” Neither word has a legal definition in this industry. Ask direct questions instead:
- “What solvent do you actually use?” A real answer names the method. Vagueness is an answer too.
- “Is cleaning done here or sent out?” Many storefronts are drop-off points that ship garments to a wholesale plant, which may still run PERC.
- “Are you certified by anyone?” Green Cleaners Council certification, for example, involves an actual review of wet cleaning capability, recycling, and water and energy use.
- Use your nose. Walk in. A PERC plant usually smells like one.
FAQs
Is PERC-free dry cleaning as effective on stains?
For the vast majority of garments, yes. Wet cleaning actually outperforms solvent cleaning on water-based stains like sweat, wine, and coffee. Heavy oil and grease is where PERC had its edge, and modern silicone and hydrocarbon systems handle that well with proper pre-treatment.
Does it cost more?
Usually within a dollar or two per garment of conventional pricing. The equipment costs more upfront for the cleaner, but the process itself isn’t dramatically more expensive to run.
Will my clothes still be pressed and finished the same way?
Yes. Finishing, pressing, and shirt work are separate steps from the cleaning method and don’t change.
Should I still remove the plastic bag at home?
Good habit either way. Plastic traps moisture against fabric, which is not great in a humid climate regardless of solvent.
Can everything be cleaned without PERC?
Nearly everything. A small number of heavily oil-stained industrial items are genuinely easier with aggressive solvents, but for household and business wardrobes it’s a non-issue.
Puritan Dry Cleaners has run PERC-free, eco-friendly cleaning in Tequesta for over 25 years, well before the EPA set a phaseout date. All work is done on premises at 150 US-1, with free pickup and delivery across Jupiter, Palm Beach Gardens, Juno Beach, and surrounding areas. Questions about a specific garment? Call 561-746-1400.