The Best Air Con Cleaner 2021

Harmful bacteria and bad odours hide within your car’s air conditioning system but they can be easily removed using an air con cleaner. Most function by placing the cleaner in the footwell and leaving the air conditioning run for a few minutes.

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Best Air Con Cleaner
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If you require a quick answer, the best air con cleaner is the Autoglym ACC150, which is a long lasting treatment that lasts up to 6 months and leaves behind a fresh lemon fragrance. However, if you’re on a tight budget, the STP GST23150 is a more affordable solution that’s much quicker to use too.

To rate the air con cleaners within this article, we based our recommendations upon testing, research and multiple factors. The factors that we considered included their type, ease of application, effectiveness, scent and value for money.

Car Air Conditioning Cleaner Comparison

Air Con CleanerTypeApplication
Autoglym ACC150Aerosol20 Minutes
STP GST23150Aerosol10 Minutes
Comma AIRCCAerosol10 Minutes
Liqui Moly 4087Tube & Liquid20 Minutes
K2 Bomb KitAerosol & Foam15 Minutes
Holts SanitiserAerosol10 Minutes

Below is a list of the best car air con cleaners that clean the entire system and leave behind a pleasant fragrance.

The Best Air Con Cleaner


1. Autoglym Air-Con Cleaner

Autoglym Air-Con Cleaner
The Autoglym Air Con Cleaner is a UK made formula that’s designed to provide long lasting treatment for up to 6 months. In terms of using the formula, simply place it into the footwell at a right angle, turn the air conditioning system on (with the engine running) and leave it get to work for 20 minutes.

Other features of the Autoglym Air Con Cleaner include:

  • Cleans and refreshes
  • Use every 6 months
  • Application takes 20 minutes
  • Leaves behind a lemon fragrance
  • Made in the UK
  • 150 ml aerosol

Although expensive when compared to some of the alternatives, the Autoglym Air Con Cleaner is a highly rated formula that won’t disappoint. It thoroughly cleans the air conditioning system and leaves behind a pleasant lemon scent too.
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2. STP Car Air Con Cleaner

STP Air Con Cleaner-Clean
By far the most popular car air con cleaner is the STP formula, which cleans and refreshes. Simply place the aerosol behind the front passenger seat, put the air conditioning on full power in the internal circulation mode and then leave it for up to 10 minutes to get to work.

Other features of the STP Air Con Cleaner include:

  • Eliminates odours and bacteria
  • Takes 10 minutes
  • Leaves behind a fresh scent
  • No tools or mechanical experience required
  • Made in Europe

Overall, the STP Air Con Cleaner is a highly rated and popular formula that offers the best value for the money. It’s also produced by the highly reputable STP brand for complete peace of mind.
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3. Comma AIRCC Car Air Conditioning Cleaner

Comma AIRCC Car Air Conditioning Cleaner
Another car air conditioning cleaner that takes just 10 minutes to get to work is by Comma brand. It’s their new and improved formula that’s even more effective and also deodorises your car’s upholstery and carpets.

Other features of the Comma AIRCC Aerosol include:

  • Leaves behind a “new car smell”
  • Application takes 10 minutes
  • Made in the UK
  • 150 ml aerosol

Overall, the Comma AIRCC is an excellent all-round air con cleaner that ticks all the boxes. It’s quick, easy to use and cleans the entire air conditioning system in just 10 minutes.
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4. Liqui Moly Climate Control Unit Cleaner

Liqui Moly Climate Control Unit Cleaner
The Liqui Moly brand are well-known for their fuel injector cleaners but they also produce a range of other popular products such as this air con cleaner. It’s suitable for all air conditioning or climate control systems and is designed to be sprayed directly inside of the air vents.

Other features of the Liqui Moly 4087 include:

  • Removes mould and bacteria
  • Leaves behind a fresh scent
  • Takes 15 to 20 minutes for the fluid to take effect
  • Made in Germany
  • 250 ml aerosol

Overall, the Liqui Moly 4087 is a high quality air con cleaner but the premium price tag makes it a less attractive option when compared to the alternatives in this article.
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5. K2 Air Con Bomb Kit

K2 Car Air Con Bomb Kit
The K2 Air Con Bomb Kit is designed to effectively remove any odours, contaminants and moisture from the system from just a single application. The complete kit comes with an active foam formula and an air con bomb that the brand states is suitable for all car air conditioning systems.

Other features of the K2 Air Con Bomb Kit include:

  • Foam and aerosol formula
  • Application takes 15 minutes
  • Leaves behind a fresh citrus scent
  • Supplied with a 40 cm application tube
  • Supplied with instructions

If you are looking for a more thorough clean of your car’s air conditioning system, the K2 Air Con Bomb Kit is an excellent option. It’s relatively easy to use but you will need to change the cabin air filter after use for the best results.
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6. Holts Air Con Sanitiser

Holts Air Con Bomb Sanitiser
The Holts Car Sanitiser is one of the cheapest air con cleaners that’s actually worth buying. According to the brand, it kills up to 99.99% of bacteria and freshens up your car’s interior with a fresh scent.

Other features of the Holts Car Sanitiser include:

  • Application takes 10 minutes
  • Meets the EN 14476 standards
  • Made in the UK
  • 150 ml aerosol

Overall, the Holts Car Sanitiser is a great choice for those on a budget and it cannot be beaten on price. Unlike similar priced cleaners, this particular formula is made in the UK by the reputable Holts brand.
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How We Tested & Rated The Air Con Cleaners

As we own a number of cars, we were able to test out multiple formulas by some of the biggest brands in the UK. Although air con cleaners are a niche product, they are becoming increasingly more popular due to the fact that people are more concerned with their hygiene.

During testing of the Autoglym formula in the photo, we were very impressed by its ease of application and the scent left behind. The only slight drawback is that it does take a while to use but the end result is worthwhile.

As well as testing a number of formulas, we also based our recommendations upon plenty of research and multiple factors. The factors that we considered included their type, ease of application, effectiveness, scent and value for money.

best car air con cleaner

Below is a video of us testing and showing an air con cleaner in action from our Instagram page.

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Conclusion

Although you can attempt to cover up bad odours with a car air freshener, the harmful bacteria will still be present. By using a car air conditioner cleaner, you can completely remove the bacteria as well as the odour and totally freshen up your car. The recommendations above are suitable for all car air conditioning systems and are very simple to use.

author dan 4car

Written By Dan

Dan has been a car enthusiast ever since he can remember and has an extensive range of cars that include classic cars that he has restored himself from a barn find condition to modern performance cars. Whether you need advice on how to install car parts or recommendations on what products to buy, Dan’s first-hand experience will certainly help.

If you want to find out more about Dan, our testing process or the website itself, visit our about page for further information.

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