The Best Air Con Cleaner 2021

Harmful bacteria and bad odours hide within your car’s air conditioning system but they are 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.

Best Air Con Cleaner

The best air con cleaner is the Autoglym ACC150, which provides long lasting treatment that lasts up to 6 months. However, if you prefer a more affordable and quicker alternative, the STP GST23150 is the perfect solution.

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 relatively expensive when compared to some of the alternatives, the Autoglym Air Con Cleaner is a highly rated formula. It thoroughly cleans the air conditioning system and leaves behind a pleasant lemon scent that lasts.
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2. STP Car Air Con Cleaner

STP Air Con Cleaner-Clean
By far the most popular car air conditioning cleaner is the STP formula, which cleans and refreshes. Simply place the aerosol behind the front passenger seat, put the air con 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

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 after 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 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 Bomb 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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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.

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