Let’s talk about something most homeowners only think about when the house isn’t cooling: refrigerant. You’ve probably heard names like “Freon” or “Puron,” maybe even read a wikiHow about topping it off yourself. But in 2025, that kind of advice is not just outdated, it’s potentially dangerous, illegal, and… well, missing the point entirely.
The refrigerant landscape is changing fast. And if your AC needs a recharge this year, here’s what you really need to know.
Do HVAC Companies Still Use Freon?
For a long time, Freon (R-22) was the industry standard. It cooled homes all across Missouri and the rest of the country. But it was harmful to the ozone layer, and so, in 2020, the EPA officially ended all new production and imports.
If you’ve got an older system, think pre-2010, you may still be running on R-22. But any “Freon” used today is recycled, reclaimed, and extremely expensive. That’s if you can even find it.
Then came R-410A, also known by the brand name Puron. It doesn’t damage the ozone like R-22, which was a major win. But there’s a catch: it has a very high global warming potential (GWP), over 2,000 times worse than carbon dioxide. So now, that refrigerant is on its way out too.
Will R-410 Be Available After 2025?
Starting January 1, 2025, U.S. manufacturers are no longer allowed to use R-410A in new AC systems. You can still use your existing unit, and it can be serviced, for now, but all newly manufactured systems will use something else.
So what’s replacing it?
What is the New AC Refrigerant in 2025? Meet R-32 and R-454B — The New (Greener) Kids on the Block
As part of the 2025 shift, two refrigerants are stepping into the spotlight: R-32 and R-454B. Both are significantly more climate-friendly, with much lower GWPs, and zero ozone damage.
- R-32 has been used overseas for years. It’s energy-efficient and clocks in at a GWP of around 675, much better than R-410A.
- R-454B is even lower, at about 466 GWP. Carrier developed it as a near plug-and-play replacement for R-410A in terms of performance.
But here’s the twist: both refrigerants are classified as mildly flammable (A2L). Not dangerous if installed properly, but definitely not something you want to mess with as a weekend project.
Also, important: they’re not interchangeable with older systems. You can’t retrofit a system built for R-410A to run on R-32 or R-454B. It just doesn’t work, different pressures, different materials, different safety features.
So when your current AC eventually gives out, your replacement will automatically come with one of these newer refrigerants. Until then, you’re fine to keep using R-410A if your system is working properly.
“How to Add Freon to Your AC” Is Now a Terrible Idea
There was a time when topping off refrigerant seemed like a simple DIY hack. Not anymore.
In fact, if you try to add refrigerant to your home AC in 2025 without a license? You’re likely breaking federal law.
Let’s pause there: you need an EPA Section 608 Certification just to buy refrigerant for a stationary system. And no, that YouTube tutorial doesn’t count.
Even beyond legality, there are serious safety and environmental risks:
- Refrigerants are stored under high pressure. Mishandling can lead to frostbite, leaks, or even small explosions.
- R-32 and R-454B, while safe in a sealed system, are flammable if leaked.
- Venting refrigerant into the air (even accidentally) can result in fines of up to $44,000 per day. That’s not a typo.
If that’s not enough to discourage you from DIY, consider this: without the right gauges, leak detectors, or recovery equipment, even a careful attempt could damage your system, or void your warranty.
How Homeowners Can Navigate the New Refrigerant Changes in 2025
Here’s the good news: you don’t need to memorize refrigerant codes or stress about the chemical makeup of your AC system. That’s what we’re here for.
At Meyer Heating & Air, our licensed technicians are already working with R-32 and R-454B. We’ve been through refrigerant transitions before, from R-22 to R-410A, and now this, and we’re trained on all the latest safety codes and EPA requirements.
So what should you do if your system is acting up?
- If your AC isn’t cooling well, don’t assume it “just needs Freon.” It might be a leak, a clogged coil, or even a failing capacitor. We’ll diagnose it correctly.
- If you know your unit uses R-22, it’s probably time to start planning for a replacement. We can help you weigh the costs.
- If you have an R-410A system, you’re still okay, we can service it. But keep in mind, it’s on borrowed time.
And when your next AC does arrive? Don’t worry. The new refrigerants are safe, efficient, and better for the planet — as long as they’re installed and handled by pros.
The Bottom Line: Don’t DIY Your AC in 2025
Yes, we get it. Saving money is important. But when it comes to modern air conditioners, DIY refrigerant work just isn’t worth the risk, not legally, not environmentally, and definitely not financially.
We’re not saying this to scare you. It’s just the reality of how much HVAC systems have evolved, and how the rules have changed to match.
Instead, trust a licensed technician who’s equipped to handle it the right way. Someone who’s certified, insured, and trained on all the new refrigerants hitting the market.
Someone like Meyer Heating & Air.
Need Your AC Checked?
Whether you’re concerned about refrigerant, want to plan ahead, or just know something’s off with your cooling, we’re ready to help.
Call us at 314-845-1929
Or Schedule Online
Stay cool out there.
