InterDynamics Certified A/C Pro Vent and Duct Cleaner, Professional Strength Odor Eliminator for Cars, Truck, HVAC, 10 Oz

Works well when you properly prepare the car as follows:1. Clean/blow off and wash off that external air intake area prior to applying this.2. The biggest thing people forget is to temporarily remove the cabin air filter prior to spraying this in the external air intake around the hood windshield area. You want this product to go past where the cabin air filter is and reach the A/C system.3. Once you start spraying it into the external air intake, you’ll notice the fumes are pretty strong. Same goes for the inside of the car. I got a little bit of a headache during application, so take precautions.4. You already have the cabin air filter out as part of this exercise, so replace it with a clean, new filter while you are there.After running the car’s A/C system for about 20 minutes, I was concerned about the chemical smell in the car being too strong, so I washed off the external air intake area with the garden hose and ran it another 10 minutes. The results were awesome: the bad smells were gone. I let it sit overnight and drove with the windows down the next day. The chemical smell was very light on day 1 and completely gone by day 2.

We could tell the difference immediately. Car smells clean and fresh with no overpowering or lingering scents. Very pleased with the results!

I got this because I noticed a mildew odor coming from my car's vents. It was easy enough to use, and I don't smell the mildew any longer....but my car now stinks of knockoff febreeze anytime I turn on the air. After a week, it's faded a little, and I'm counting down the days until the scent (hopefully) disappears completely. I can't tell at this point if it's killed or just covered up the mildew.

Helped get the mildew smell out of my car's A/C system. Worked great and with lasting results.

Works well, follow directions. Used in an older car, real musty odor, cleared it up, I ran my system from ac to vent back and forth, etc. It's a reasonable price for this type of product.

Not very effective for car odors. Used as directed and while it doesn’t leave a bad, perfume smellIt really didn’t do anything for neutralizing the weird smell in a newly purchased used car.

Used 1/4 of it and the can didn’t have any more pressure. The smell was good and it worked well until it stopped working

I highly recommend this product. Wife and I bought a used car when we turned on the heater/AC there was a rank smell coming through vent. Tried a couple different products to no avail but following directions for this completely cleaned and deodorized the whole vent system. No more bad smells