A refrigerator or air conditioner that has reached the end of its working life is rarely a simple scrap item. Inside the sealed loop of every older unit sits a charge of refrigerant, and in many cases that refrigerant is an ozone-depleting substance (ODS) such as a CFC or HCFC. For recycling operators, the moment that unit arrives on the yard is the moment a decision is made: the refrigerant will either be captured safely, or it will escape into the atmosphere. Getting this right is not just an environmental courtesy. It is a legal obligation in most countries, a safety requirement on the plant floor, and increasingly a matter of business reputation for recycling companies that want to work with serious buyers and regulators.
This guide walks through why ozone-depleting refrigerants still show up in modern recycling streams, what the rules require, and the practical steps a recycling operation should follow to recover, recycle and dispose of them properly.
Why ozone-depleting refrigerants still matter in 2026
The Montreal Protocol, signed in 1987, put chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) on a global phase-out schedule because of the damage they cause to the stratospheric ozone layer. Production of CFCs such as R-12 has been banned for years, and HCFCs such as R-22 are being phased down worldwide. But a ban on production is not the same as a ban on existence. Refrigeration and air-conditioning equipment has an operational life of roughly 8 to 20 years, which means a steady stream of units charged with these older gases is still arriving at recycling plants every single day.
These gases are held in what the United Nations Environment Programme calls refrigerant "banks" - the substances still trapped inside existing equipment, stockpiles and foam insulation. If those banks are not managed through containment, recovery and destruction, the emissions can undermine decades of ozone protection work. The stakes are measurable: life-cycle refrigerant management is estimated to be able to mitigate up to 67 gigatonnes of CO2-equivalent emissions by 2100, while protecting the ozone layer at the same time.
Know what is inside the unit before you touch it
The first rule of safe refrigerant handling is simple: never assume. A unit's age, brand or label is not enough to tell you what gas it holds. Older refrigerators and freezers commonly contain R-12, while many air conditioners and commercial units were charged with R-22. Newer equipment may hold R-134a, R-404A, R-407C or R-410A, and a growing number of modern appliances use hydrocarbon refrigerants such as R-290 (propane), which are flammable. Using a handheld refrigerant identifier before recovery tells you what you are dealing with, so you can choose the right recovery machine, the right cylinder and the right safety precautions.
Once the refrigerant type is confirmed, it must be recovered into a cylinder used only for that type of refrigerant. Mixing refrigerants is one of the most common and most damaging mistakes in the industry. A mixed or contaminated batch cannot be reused, becomes far harder to reclaim, and in some cases must be treated as hazardous waste. If a unit contains an unidentified or mixed charge, it should be recovered into a dedicated "mixed" or "junk" cylinder and handled separately.
Recovery, recycling and reclamation: the 3R framework
Under the Montreal Protocol's definitions, the three ways to manage used refrigerant are distinct and worth understanding before you design your plant workflow:
- Recovery is the collection and storage of refrigerant from equipment during servicing or before disposal. This is the step that happens on your plant floor, using a recovery machine connected to the appliance's sealed system.
- Recycling is the reuse of recovered refrigerant after a basic cleaning process such as filtering and drying. It is typically done on-site and the refrigerant is usually recharged back into equipment.
- Reclamation is the reprocessing of recovered refrigerant through distillation and chemical treatment to restore it to a specified purity standard. This normally happens at a central facility and is the only route that allows the gas to be sold back into the market as if it were virgin refrigerant.
For a recycling plant, the practical takeaway is that recovery is a daily operation, recycling may be worth building into your process, and reclamation is something you send material out for. Refrigerant that cannot be reused or reclaimed must be destroyed through approved technologies rather than vented.
A step-by-step recovery process for recycling operations
A disciplined recovery process protects your workers, your equipment and your compliance record. The following sequence works for most end-of-life refrigerators, freezers and air conditioners:
- Identify the refrigerant with a handheld identifier and note the type and quantity on your log.
- Connect a certified recovery machine to the unit's service ports. The machine must be rated for the refrigerant being recovered and in good working order.
- Evacuate the system to the required level. For equipment being scrapped, the goal is to pull the system down to zero gauge pressure so that no refrigerant remains to leak out during shredding or dismantling.
- Recover into the correct cylinder, filling only to the safe fill limit and never mixing different refrigerant types.
- Check for residual gas in the compressor and lines. A unit that is "empty" to the touch can still hold refrigerant in the compressor oil, so recovery should continue until the machine indicates the system is fully evacuated.
- Tag and store the cylinder in a cool, ventilated area, clearly labelled with the refrigerant type, date and weight.
Venting refrigerant to the atmosphere is illegal in most jurisdictions and is never acceptable practice. Even a small charge of R-22 released from a single unit contributes to ozone depletion, and repeated venting across thousands of units turns a plant into a serious source of emissions.
Choosing recovery equipment that can keep up with your throughput
The quality of your recovery equipment determines both your compliance and your productivity. A recovery machine that is slow, unreliable or poorly filtered becomes a bottleneck on the line, and operators who are under time pressure are more likely to cut corners. For plants processing refrigerators and air conditioners at scale, a dedicated refrigerant extraction machine such as the SD-680 is designed for continuous duty. It features a dual input design, multi-stage filtration, oil separation and air separation, and it handles common refrigerants including R-404A, R-407C, R-410A and R-134a. With a liquid recovery rate of 50 kg per hour and a gas recovery rate of 25 kg per hour, it keeps pace with a busy dismantling line while protecting the recovered gas from contamination.
For plants that need a simpler unit dedicated to pulling refrigerant from AC and refrigerator compressors, the refrigerant recycling machine RRM-650 is a practical choice. It is built around the same principle: recover the gas completely and safely before the appliance moves on to the next stage of processing.
Beyond the refrigerant: handling the rest of the appliance
Refrigerant recovery is only the first step in processing an end-of-life refrigerator or air conditioner. The compressor still holds oil that may be contaminated, and the unit may contain mercury switches, capacitors and other components that must be removed before shredding. After the refrigerant is recovered, the compressor can be cut open to extract the copper coil, and the cabinet can be fed into a shredding and separation line that recovers iron, copper, aluminum, plastic and polyurethane foam.
This is where a complete refrigerator recycling equipment line pays off. San Lan's RSS-030 refrigerator shredding and separating plant processes 20 to 30 units per hour, recovering iron at a rate above 95 percent and copper and aluminum above 90 percent, while separating the polyurethane foam for further handling. Paired with the right refrigerant recovery machine at the front of the line, it turns a mixed stream of old appliances into clean, saleable materials - and none of the ozone-depleting gas ever reaches the atmosphere.
Records, training and compliance
Regulators do not just expect refrigerant to be recovered; they expect it to be documented. A responsible recycling operation keeps a log of the date, location and type of refrigerant recovered from each appliance, along with the total quantity recovered. If recovery is performed by a third party rather than the final disposer, the chain of custody should be traceable. Recovery equipment should be certified by an approved testing organization, and staff should be trained on the machines they operate, the refrigerants they handle and the safety rules that apply to each.
Training matters for safety as well as compliance. Hydrocarbon refrigerants such as R-290 are flammable, so recovery should take place in a well-ventilated area away from ignition sources. Workers should wear appropriate personal protective equipment, and cylinders should be inspected regularly for damage and stored upright in a shaded, ventilated location.
The bottom line
Handling ozone-depleting refrigerant properly is not a side task in a recycling operation; it is the gate that every end-of-life appliance must pass through. Identify the gas, recover it completely with the right machine, store it in the right cylinder, and document everything. Do that consistently, and your plant protects the ozone layer, stays on the right side of the law, and produces cleaner materials from every unit it processes.
If you are setting up or upgrading a refrigerator and air conditioner recycling line, the recovery machine is only one piece of the puzzle. San Lan Technologies designs complete recycling solutions - from refrigerant extraction and compressor cutting to shredding, separation and metal recovery - and can help you match the equipment to your target throughput. Contact the team to discuss your plant layout and processing requirements.
