The experimental LG system uses pressurized carbon dioxide as its cleaning fluid. If it can overcome cost, safety and energy hurdles, it could reshape commercial laundry while conserving water and reducing wastewater.
SEOUL, South Korea | Published at 7:04 p.m. ET
For more than a century, the basic bargain of the washing machine has remained largely unchanged. Consumers place dirty clothes in a drum, add detergent, supply water and wait while mechanical motion separates grime from fabric.
A South Korean project is challenging that formula at its foundation.
LG Electronics has been developing a washing system that replaces water with pressurized carbon dioxide, converting the gas into a liquid cleaning medium before recovering it for reuse. The proposed machine does not simply promise to use less water. Its central goal is to conduct the cleaning process without conventional wash water or detergent.
The technology could eventually transform commercial laundries, dry-cleaning operations and water-stressed communities. It could also create a new category of appliance built around a sealed carbon dioxide circuit instead of plumbing, wastewater and repeated rinse cycles.
The story, however, requires an important qualification. This is not a newly announced household washer that consumers can order today. LG received South Korean government authorization in late 2021 to test the system under a regulatory sandbox, and its earliest plans centered on a large industrial machine. Recent Korean reporting indicates that the company has been pursuing commercial deployment before any possible household rollout.
That distinction matters because high-pressure carbon dioxide systems are more complicated than ordinary residential appliances. They require pressure-resistant equipment, gas-management controls and extensive safety validation.
Still, the idea has progressed beyond a drawing on an engineer’s desk. If LG can prove that it is safe, efficient and economical at commercial scale, the washer could force one of the world’s most mature appliance industries to rethink what a washing machine actually needs.
How the carbon dioxide washer works
Carbon dioxide is usually encountered as an invisible gas. Under controlled pressure and temperature, however, it can be converted into a dense fluid with useful solvent properties.
LG’s proposed system cools and compresses carbon dioxide so that it can circulate through clothing inside a sealed washing chamber. The fluid’s low viscosity and surface tension allow it to penetrate spaces within fabric and interact with certain oils and contaminants.
Once cleaning is complete, the machine changes the carbon dioxide back into a gaseous state, separates collected contaminants and retains the gas for another cycle. The central environmental promise is that the carbon dioxide circulates within a closed system instead of being routinely released.
A 2021 report from Aju Press, citing South Korea’s Ministry of Trade, Industry and Energy, said the process was designed to clean without water, detergent or oil. The report also said the system would produce neither conventional wastewater nor the exhaust associated with some cleaning processes.
This is closer in concept to advanced solvent cleaning than to a standard front-loading washer. It is also why the first practical destination is likely to be a controlled commercial facility rather than a family laundry room.
Commercial operators can install specialized ventilation, pressure monitoring, gas detection and maintenance systems. They can also run the machines frequently enough to justify the higher equipment cost.
From regulatory experiment to a commercial test
South Korea’s high-pressure gas rules initially presented a significant obstacle. Equipment that compresses and liquefies carbon dioxide can be subject to separation-distance, barrier and safety-management requirements. Those rules were not written with a compact laundry appliance in mind.
The government therefore granted LG a regulatory sandbox exemption allowing the company to operate a demonstration unit. The original plan called for a two-year safety and performance test at an LG research facility. If the system proved viable, LG could seek permission to install machines in commercial laundry locations.
Korean media reported in January 2026 that LG planned to enter the commercial market first and work with Uiseongju Company, the operator behind South Korean laundry service Laundrygo. That report suggested a possible path from laboratory validation to daily operation inside an industrial laundry plant.
Consumerlite News has not independently confirmed that a full commercial installation has entered routine service. LG’s publicly accessible global product pages also do not list a residential carbon dioxide washer for sale as of publication.
For that reason, it would be premature to describe the technology as a replacement for the washing machines currently sold in stores. The more accurate description is a potentially disruptive commercial cleaning platform moving through the difficult period between demonstration and broad adoption.
Why eliminating wash water would matter
The environmental case begins with the enormous amount of freshwater that laundry consumes.
Every conventional cycle requires water to dissolve detergent, move cleaning agents through fabric and rinse away soil. Water must then be transported, treated and eventually discharged into a sewer or septic system. Warm and hot cycles add an energy burden because the water must be heated.
The U.S. Environmental Protection Agency’s ENERGY STAR guidance says water heating can account for about 90 percent of the energy used by a clothes washer. That is why washing with cold water is one of the agency’s primary recommendations for lowering household energy use.
An appliance that removes wash water from the equation could potentially reduce demand at several points:
- It could eliminate or sharply reduce the freshwater required during the cleaning cycle.
- It could reduce the need to heat wash water.
- It could prevent detergent-laden wastewater from entering municipal treatment systems.
- It could reduce rinse cycles.
- It could make laundry facilities less dependent on large water and sewer connections.
- It could help preserve garments if the process causes less swelling, fading or mechanical damage.
Those advantages could be particularly valuable in hotels, hospitals, uniform services and industrial laundries, where machines operate for long periods and process large volumes of fabric.
The benefit would not be evenly distributed. Replacing one efficient washer in a household that runs a few loads each week would save less water than converting a commercial plant that operates dozens or hundreds of cycles every day.
That scale makes business laundries the logical first market.
A response to a deepening water problem
The machine is arriving as governments and businesses confront increasingly uneven water availability.
The World Wildlife Fund estimates that billions of people experience some degree of water scarcity and warns that excessive withdrawals and pollution are damaging freshwater ecosystems. Its water-scarcity overview states that 2.7 billion people face scarcity for at least one month each year.
Agriculture remains the dominant global user of freshwater, so no washing machine can solve the water crisis by itself. Domestic laundry is only one piece of a much larger system.
But reductions in homes, hotels and commercial plants can still matter locally, particularly in cities dealing with drought, population growth or expensive wastewater expansion.
The technology could also change where laundry operations are built. A cleaning plant that needs far less water and produces little conventional wastewater might operate in locations where sewer capacity would otherwise be a limiting factor.
That possibility gives the machine value beyond its environmental branding. It could alter the economics of commercial laundry infrastructure.
The wastewater question
Conventional laundry wastewater does not contain only water and detergent. It can carry oils, dyes, dirt, chemical residues and fibers released from clothing.
Synthetic garments can shed microscopic plastic fibers while being washed. Some are captured during wastewater treatment, while others can move into waterways or become concentrated in sewage sludge.
A closed carbon dioxide system might reduce the flow of those contaminants into wastewater because there would be no conventional wash stream to discharge. Solid debris and extracted substances could potentially be collected at the machine and handled separately.
That does not mean the waste disappears. Dirt, oils, microfibers and other material removed from clothing must still go somewhere. A responsible commercial design would need filters, collection vessels and clear disposal procedures.
The environmental comparison must therefore examine the full process, including what happens to recovered contaminants, how filters are replaced and how much material escapes during maintenance.
Carbon dioxide does not automatically mean climate friendly
The phrase “carbon dioxide washing machine” can create understandable confusion. Carbon dioxide is the principal greenhouse gas produced by fossil-fuel combustion, so using it inside an appliance may sound environmentally contradictory.
The crucial issue is whether the gas operates in a sealed loop.
If a machine is filled with carbon dioxide and continually recovers it, the same supply can be used repeatedly. Under that model, the gas functions as an industrial working fluid rather than fuel.
The climate calculation still depends on several unresolved questions:
- Where does the carbon dioxide come from?
- How much escapes during each cycle?
- How much electricity is needed to compress, cool and recover it?
- What is the carbon intensity of that electricity?
- How long does the equipment last?
- How often must the system be serviced or refilled?
- How does its total footprint compare with an efficient cold-water washer?
If the machinery consumes large amounts of electricity, environmental gains from water conservation could be offset by power-related emissions. If the system leaks, its operating climate impact would rise.
This is why the industry needs independently verified life-cycle data, not only claims about water savings. A credible assessment must compare the carbon dioxide machine with modern high-efficiency washers across thousands of cycles.
Safety will determine whether it reaches homes
Carbon dioxide is nonflammable, but that does not make a high-pressure system risk-free.
A substantial leak inside a poorly ventilated room could displace oxygen and create an asphyxiation hazard. Pressurized components also require strong tanks, dependable seals, relief mechanisms and careful inspection.
A residential version would need multiple layers of protection. These could include automated shutoff valves, carbon dioxide sensors, leak detection, pressure monitoring, ventilation requirements and software designed to stop a cycle before unsafe conditions develop.
The machine would also have to survive years of vibration and repeated heating, cooling and pressurization. Consumers expect a washer to operate safely with limited maintenance, including in basements, closets and small apartments.
Industrial facilities can train staff and inspect equipment on a schedule. Household users cannot be expected to behave like pressure-system technicians. That gap explains why the commercial market is the most realistic testing ground.
What this could mean for the appliance industry
The largest change would be architectural.
Traditional washer manufacturers compete through drum design, motors, cycle programming, detergent dosing, energy efficiency and connected software. A carbon dioxide machine adds compressors, pressure vessels, recovery chambers and solvent-management systems.
That would bring appliance makers into closer competition with industrial cleaning-equipment and refrigeration companies. It would also create opportunities for component suppliers specializing in pumps, valves, seals and gas sensors.
The service model could change too. Instead of repairing a water pump or clearing a drain, technicians might test pressure integrity, recover carbon dioxide and certify safety systems. Commercial customers could purchase service contracts tied to monitoring and gas recovery.
Detergent companies would face a different question. If a carbon dioxide system can clean selected fabrics without traditional detergent, large commercial adoption could reduce demand for some chemical cleaning products. Those companies could respond by developing compatible additives, pretreatments or finishing agents.
Plumbing requirements might also shrink, but electrical requirements could grow. The machine would exchange part of the water problem for a mechanical and energy challenge.
The technology may not clean every stain equally
Water is an excellent carrier for many substances, especially water-soluble stains. Carbon dioxide has different chemical characteristics and may perform particularly well against oils and grease while requiring additional treatment for salts, sugars or certain biological stains.
A commercially successful machine will need to handle the unglamorous reality of laundry, including food, sweat, soil, blood, cosmetics and mixed fabrics.
Cleaning performance must be measured across cotton, wool, synthetics, blends, workwear and delicate garments. Odor removal, hygiene, color preservation and fabric feel also matter.
LG’s original approval highlighted the fluid’s ability to penetrate fabric pores and remove contamination. That provides a plausible technical basis, but broad market acceptance will require comparative testing from independent laboratories.
One machine may not replace every washer. Carbon dioxide cleaning could instead become a specialized option for garments and commercial loads where water use, fabric preservation or wastewater restrictions carry exceptional costs.
A breakthrough, but not yet a household revolution
The most compelling part of LG’s project is not that it puts artificial intelligence into another appliance. It changes the physical medium responsible for cleaning.
That is a much more fundamental experiment.
Yet the strongest reporting must resist the temptation to declare that water-based washing is already obsolete. The concept dates to LG’s 2021 regulatory approval, its initial test was designed for industrial conditions, and a household launch date has not been announced.
What has changed is the commercial context. Reporting in 2026 indicates that LG is looking beyond laboratory work and toward a business-to-business deployment. If that transition is successful, operators will generate the performance, maintenance and cost data needed to determine whether the technology can expand.
The first victory would not be a futuristic washer in every American home. It would be a commercial laundry proving, cycle after cycle, that it can clean reliably while consuming little or no wash water and keeping its carbon dioxide contained.
If LG clears that bar, competitors will take notice.
The washing-machine industry has already spent decades reducing water and electricity use. A practical carbon dioxide system would present a more radical proposition: perhaps the most sustainable water cycle is the one the machine no longer needs.
Reporting and interview disclosure
This article is an original Consumerlite News analysis written by David Soyer using government information, company-linked technical descriptions and publicly reported statements.