Freon: What It Is and How It Keeps Your Space Cool

If you’ve ever had an air conditioner serviced, you’ve likely heard the word Freon mentioned. But what exactly is it, and why is it such an important part of cooling systems?

In this article, we’ll take a closer look at Freon—what it is, how it works in HVAC systems, and why the industry is shifting to safer alternatives.

What Is Freon?

Freon is the trade name for certain types of refrigerants, specifically CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons). These chemicals were commonly used in air conditioners and refrigerators to absorb and transfer heat.

One of the most widely used Freons was R-22, prized for its performance and reliability in residential systems over many years.

How Does Freon Work in an Air Conditioning System?

Freon is what allows your air conditioner to cool your home. Here’s how the process works:

Heat Absorption: Freon absorbs heat from indoor air as it turns from a liquid to a gas.

Compression: The warm gas is compressed, raising its pressure and temperature.

Heat Release: The heated gas moves to the outdoor unit, where it releases heat and cools down.

Cycle Repeats: The refrigerant turns back into a liquid and repeats the cycle.

This continuous heat exchange process is how air conditioners maintain cool, comfortable indoor temperatures.

Why Was Freon So Widely Used?

✔️ Effective Cooling

Freon is excellent at absorbing and transferring heat, making it a dependable choice for cooling systems.

✔️ Protects HVAC Components

Maintaining proper refrigerant levels helps reduce stress on vital parts like the compressor, helping your system last longer.

✔️ Energy Efficiency

When Freon levels are correct, your AC doesn’t have to work as hard, which reduces energy use and lowers utility bills.

Environmental Concerns

Despite its benefits, Freon has one major drawback: it harms the ozone layer. When released into the atmosphere, refrigerants like R-22 contribute to ozone depletion, which increases the Earth’s exposure to harmful UV rays and contributes to environmental damage.

Due to these risks, the use of R-22 was officially phased out in the United States in 2020 under the Montreal Protocol, a global agreement aimed at protecting the ozone layer. Although older systems using R-22 can still be serviced with recycled refrigerant, no new R-22 is being produced or imported.https://www.callgleason.com/what-is-freon-and-why-is-it-important

Better, Greener Alternatives

Modern HVAC systems now use refrigerants that are safer for the environment:

R-410A – A chlorine-free refrigerant that doesn’t damage the ozone layer.

R-32 – A newer option with lower global warming potential and high energy efficiency.

If your system still relies on R-22, upgrading to a newer model can help you save on energy, reduce your environmental impact, and stay compliant with current regulations.

Final Thoughts

Freon played a vital role in cooling systems for decades, but due to its environmental effects, it’s being replaced by better alternatives. Understanding how refrigerants work and when to consider an upgrade can help you keep your system running efficiently while protecting the planet.

Looking for Trusted HVAC Services Near Wauconda, IL?

At Gleason Heating and Air Conditioning, we specialize in reliable, fast, and expert service for homeowners across Wauconda and the Northern Chicago Suburbs.

Our team offers:

Same-day air conditioning and furnace repairs

Water heater and frozen pipe solutions

New HVAC system installations

Routine maintenance to keep your system running smoothly

We’re committed to quality, professionalism, and total customer satisfaction—every job, every time.

Contact us today to schedule service or request a free quote. We’re here to keep you comfortable year-round.