If you've ever wondered whether an AC misting system actually works — or if it's just a gimmick — you're not alone. The engineers at Tulane University asked the same question. So they ran a controlled lab study to find out.
Here's what they found, explained in plain English.
First — What Problem Were They Trying to Solve?
Your air conditioner works by moving heat from inside your home to outside. The outdoor unit (called the condenser) pushes that heat into the surrounding air.
Here's the problem: on a hot summer day, the air around your condenser is already hot. The hotter the surrounding air, the harder your AC has to work to push heat into it. It's like trying to pour water into a full glass — there's nowhere for the heat to go.
The result? Your AC runs longer, works harder, uses more electricity, and wears out faster.
What the Tulane Study Tested
Tulane University's Department of Mechanical Engineering ran a controlled laboratory experiment on AC misting systems — the kind that spray ultra-fine water mist around the outdoor condenser unit.
The idea behind misting is simple: when water evaporates, it pulls heat out of the surrounding air. This is called flash evaporation. The same principle is why you feel cooler when you step out of a pool on a hot day.
The question was: does it actually make a meaningful difference for a real AC unit?
What They Found
The results were significant. Here are the key findings in plain English:
1. It Dramatically Increased Efficiency
The study found that AC misting increased heat flux by 170%. Heat flux is a measurement of how efficiently your AC is transferring heat out of the system.
In simple terms — the AC unit was moving heat out of your home more than twice as effectively with misting than without it.
2. It Lowered the Air Temperature Around the Unit by Up to 30 Degrees
By spraying micro-fine mist around the condenser, the air temperature immediately surrounding the unit dropped significantly. If it's 98°F outside, the air around your condenser can drop to approximately 68°F — a 30 degree difference.
That cooler air gives your AC unit something it desperately needs on a hot day: room to breathe.
3. It Reduced Energy Consumption
With the condenser running more efficiently, the AC compressor runs at lower pressure. Lower pressure means less energy used. The study confirmed significant reductions in energy consumption — and Cool-n-Save customers consistently report saving 20-30% on their cooling costs.
Here is the study if you want to do a deep dive. https://cdn.shopify.com/s/files/1/0565/8660/0497/files/CNS_Tulane_Study-2018.pdf?v=1722103742
What This Means for Your Electric Bill
Let's put some numbers to this.
The average American household spends around $1,000–$1,500 per year on air conditioning. If misting reduces your AC energy consumption by 20-30%, that's $200–$450 back in your pocket every summer — from a product that costs a fraction of that.
And that doesn't count the extended life of your AC unit. When your compressor runs at lower pressure and for shorter periods, it experiences less wear and tear. That means fewer repairs and a longer lifespan for your system.
Why Cool-n-Save?
Cool-n-Save is the original patented AC misting system — the most installed AC mister on the market since 2006. Unlike large commercial misting systems that require professional installation and electrical connections, Cool-n-Save:
- Installs in 5 steps with no tools and no wires
- Uses no electricity — it's powered entirely by your water supply
- Automatically turns on when your AC runs and off when it stops
- Includes a water filter to protect your unit
- Comes with a 1-year warranty
The same technology that large factories and office buildings have used for years to reduce their cooling costs is now available for your home — and it takes less than 15 minutes to install.
The Bottom Line
The Tulane University study confirmed what the science already suggested: cooling the air around your AC condenser makes your system significantly more efficient. Less energy used. Lower electric bills. Longer AC life.
If you live in a hot climate and your AC runs hard all summer, an AC misting system is one of the most cost-effective upgrades you can make to your home.
Cool-n-Save is the original patented AC misting system, available exclusively at coolnsave.com. Not available for shipping to Arizona, Nevada, or Palm Springs, CA due to hard water conditions.