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Do Dehumidifiers Have Freon?

Dehumidifiers that were manufactured before 2020 may contain Freon. Freon is a brand name for a group of refrigerants that were used in many household appliances, including dehumidifiers. However, Freon is a greenhouse gas contributing to ozone depletion, so the EPA banned its use in new appliances in 2020.

Dehumidifiers manufactured since 2020 should not contain Freon. Instead, they use other refrigerants that are less harmful to the environment. Some of the most common refrigerants used in dehumidifiers today are R-410A, R-134a, and R-407C.

If you are unsure whether your dehumidifier contains Freon, you can check the owner’s manual or contact the manufacturer. It is essential to dispose of Freon-containing dehumidifiers properly, as Freon can harm the environment if released into the atmosphere.

How do I know if my dehumidifier has Freon?

To determine if your dehumidifier uses Freon or another refrigerant:

  1. User Manual: The first and most straightforward method is to check the user manual of the dehumidifier. Manufacturers will typically list the type of refrigerant used in the specifications or technical details section.
  2. Labels or Stickers: Some dehumidifiers have a label or sticker on the back or bottom of the unit that indicates the type of refrigerant they use. Look for references to “R-22” (an HCFC commonly referred to as Freon) or other refrigerant designations.
  3. Manufacturer’s Website or Customer Service: If you can’t find the information on the unit or in the manual, you can always look up the model on the manufacturer’s website. Many companies will provide detailed specifications online. Alternatively, you can contact their customer service for the information.
  4. Refrigerant Regulations: It’s also worth noting that, due to environmental concerns, many countries have been phasing out certain types of Freon (especially R-22) because they deplete the ozone layer or contribute to global warming. Newer models are more likely to use alternative, more environmentally friendly refrigerants. If your dehumidifier is very old, it might have Freon, but newer models are less likely.
  5. Type of Dehumidifier: Not all dehumidifiers use refrigerants. Desiccant dehumidifiers, for example, use a desiccant material to absorb moisture from the air rather than cooling coils. If your dehumidifier doesn’t get cold during operation and doesn’t have coils, it might be a desiccant type and thus wouldn’t contain Freon or any other refrigerant.

What refrigerant is used in new dehumidifiers?

The most common refrigerant used in new dehumidifiers is R-410A. It is a hydrofluorocarbon (HFC) that is non-ozone depleting and has a lower global warming potential than Freon. Other refrigerants that may be used in new dehumidifiers include R-134a and R-407C.

R-410A is a blend of two HFCs, R-32 and R-125. It is a high-pressure refrigerant, so dehumidifiers must be built with more robust components. However, R-410A is also more efficient than other refrigerants so it can save energy and money.

R-134a is a single HFC that is also non-ozone depleting. It is a lower-pressure refrigerant than R-410A, so dehumidifiers can be lighter and less expensive. However, R-134a is not as efficient as R-410A.

R-407C is a blend of four HFCs. It is similar to R-410A in terms of efficiency and environmental impact. However, R-407C is not as widely available as R-410A.

The specific refrigerant used in a dehumidifier will depend on the manufacturer and the model. When buying a new dehumidifier, it is important to check the specifications to see what refrigerant is used. This will help you decide on the best dehumidifier for your needs.

How do I know if my dehumidifier is low on Freon?

Here are some signs that your dehumidifier may be low on Freon:

  • The dehumidifier is not collecting water as efficiently as it used to.
  • The dehumidifier is running longer than it used to.
  • The dehumidifier is making strange noises.
  • You see ice or frost on the evaporator coil or lines.
  • The dehumidifier is not cooling the air as well as it used to.

If you see any of these signs, having your dehumidifier checked by a qualified technician is a good idea. They can diagnose the problem and determine if the dehumidifier needs to be recharged with Freon.

It is important to note that not all of these signs necessarily indicate a low Freon problem. For example, if the dehumidifier is not collecting water as efficiently, it could also be due to a clogged filter or a dirty evaporator coil.

If you are unsure what is causing the problem with your dehumidifier, it is best to have it checked by a qualified technician. They can diagnose the problem and recommend the best course of action.

Are freon-based dehumidifiers harmful?

Freon-based dehumidifiers are not harmful if properly maintained and do not leak. However, Freon is a greenhouse gas contributing to ozone depletion, so it is important to dispose of Freon-containing dehumidifiers properly.

If a Freon-based dehumidifier leaks, the Freon can escape into the atmosphere and contribute to ozone depletion. Ozone depletion is a serious problem that can lead to skin cancer, cataracts, and other health problems. It can also damage plants and ecosystems.

If you have a Freon-based dehumidifier, it is important to inspect it regularly for leaks. If you find a leak, you should have the dehumidifier repaired or replaced. You should also dispose of the dehumidifier properly.

Is it illegal to use old dehumidifiers with harmful freon?

It is illegal to use old dehumidifiers with harmful Freon in some states. The Environmental Protection Agency (EPA) banned the production and import of Freon in new appliances in 2020. However, it is still legal to use Freon-containing appliances that were manufactured before 2020.

The EPA does not have the authority to regulate manufactured appliance use before the ban. However, some states have enacted their own laws that restrict the use of Freon-containing appliances.

For example, California prohibits using Freon-containing appliances in homes and businesses. Other states, such as Massachusetts and New York, have similar laws.

If you are unsure whether using an old dehumidifier with harmful Freon in your state is legal, you should contact your state’s environmental protection agency.


To answer the burning question: yes, some older dehumidifiers do contain freon, but many modern ones have shifted to more eco-friendly alternatives. If you’re considering purchasing a dehumidifier or have concerns about an existing one, it’s essential to check the specifications and choose one that aligns with both your needs and environmental considerations.