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Banish bad smells permanently with the best air con cleaners

• Banish musty, wet-dog smells
• Kill bacteria
• Have a fresh-smelling interior

Written by Alex Boyd Published: 24 April 2024 Updated: 29 April 2024

Surely, we’re getting a little bit obsessive now by suggesting adding air con cleaner to your car interior cleaning kit – but absolutely not. Any system that deals with cooling or heating in a confined space is bound to create moisture, and where there is moisture, there is always the risk of horrible spores and bacteria forming in the system, which can, in turn, cause unpleasant smells and even distribute unhealthy particles into the car.

From lingering pet smells to the remnants of last week’s takeaway, our cars can keep a hold of any number of not-so-pleasant smells that can hang around, even after vacuuming, making the daily commute even more unpleasant. Whether it’s the smell of your doggy pal, stale cigarette smoke, or the gym kit you forgot about two weeks ago, these odours have a knack for making themselves comfortable and at home in our cars, sticking around long after we would like to be rid of them. Sometimes, we have to bite the bullet and make the decision to give the interior a good steam clean to revive it, but there is an easier path.

In less than half an hour, air conditioning cleaners can neutralize and eliminate the most stubborn odours, transforming the interior of your car from an unemptied dustbin back into that comfortable place you know and love.

The best air con cleaner at a glance:

Editor’s choice: Meguiar’s Whole Car Air Re-Fresher – Buy now from Amazon UK
The best air con cleaner on a budget: Turtle Wax Odor-X Whole Car Blast – Buy now from Turtle Wax
Best for a deeper clean: Climate Doctor Foam Cleaner – Buy now from Amazon UK

But the benefits don’t end there. Not only do these cleaners obliterate existing odours, but they also have the power to fill your car with a variety of scents – even giving you that ‘new car’ smell. From fresh citrus bursts to the comfort of clean linen, there are many choices. Most of these are easy to use as you just switch the air con to full power, select the recycled air option, activate the spray and close the doors for 10-15 minutes. Then, all you have to do is allow the car to air for another 10-15 minutes, and that’s the job done. Join us as we explore the transformative capabilities of air conditioning cleaners and discover how they can breathe new life into your driving experience.

The best air con cleaner

Editor's choice

Rrp: £16.62

Price: £15.84
This air freshener from Meguiars will get rid of smells like cigarette smoke, wet dogs, and smelly gym gear. It comes in four different scents, including a new car scent. It works by feeding aerosol mist through the car's air conditioning system and then circulating around the car interior, getting rid of unpleasant smells and leaving a fresh scent.

Pros

  • A wide choice of scents
  • Easy to use, long-lasting results

Cons

  • Can leave a slight residue on some surfaces
The best air con cleaner on a budget
Turtle Wax Odor X Whole Vehicle Blast helps eliminate common car odours that build up over time. This formula features formulations combined to neutralize deeply absorbed odours in the fabric, carpet, headliner, and the air conditioning system itself. This aerosol provides a one-use-only treatment, which should give your car a fresh-smelling interior for up to 30 days.

Pros

  • Fresh smell
  • Free UK delivery
  • Good value for money

Cons

  • The smell can be quite strong initially
The best air con cleaner for sanitising
Price: £11.29
Holts tell us that this spray bomb car sanitiser will kill 99.99% of bacteria and viruses to ensure your car's airflow is clean and that you and your family stay healthy. Again, this one is so easy to use - once you activate it inside the car, you just let it filter through the air con through the air recycle setting.

Pros

  • Tested to European standards
  • Sanitising properties

Cons

  • No choice of scents
The best air con cleaner for quick cleaning
Price: £11.94
Comma has its own air conditioner cleaner. Once again, you just let it filter through the air conditioning system to get rid of the typical wet dog and stale food smells. It effectively eliminates bacteria, fungi, moulds and viruses from the air conditioning system. It takes just 10 minutes to work, as it deodorises upholstery and carpets to bring back that fresh car smell.

Pros

  • Easy-to-follow instructions
  • Works quickly
  • Natural smell

Cons

  • Spray lock could be better
The best air con cleaner for ease of use

Rrp: £17.92

Price: £16.90
Autoglym is renowned for its car cleaning products for inside and outside the car, so it's no surprise that its air-con sanitiser, with its clean and fresh citrus scent is well-received. It is ideal for targeting micro-organisms and viruses that lurk in the inaccessible pipework of air-con systems. Another nifty feature is the box can be used as a handy stand too for the cannister while it does its work.

Pros

  • Sanitary properties for a truly clean car
  • Natural citrus smell

Cons

  • The scent could last longer
Best for new car smell

Rrp: £7.95

Price: £4.50
This is just one part of the extensive range of Simoniz Car Cleaning Products, which will add that extra fresh finish to your cleaning session. Once again, all you need to do is activate the can and leave it inside your car with the air-con activated. This will allow it to permeate all the hidden nooks and crannies to kill bacteria and unpleasant smells, leaving you with that new-car smell.

Pros

  • Part of the Simoniz range
  • New car smell

Cons

  • Can require a second application
Best for a deeper clean
Price: £8.99
This air-con cleaner from Climate Doctor is a little different from the others but gives comparable results. This foam formulation is sprayed directly into the pollen filter or condensation drain using the probe which is provided. Leave the foam to do its work for about 15 minutes then activate the air con for a further 10 mins to get the best results. Some of the foam can leak out of the internal vents, but this is easily wiped away with a clean cloth.

Pros

  • Deeper clean
  • Application nozzle included

Cons

  • It's messier than other methods

Frequently asked questions:

How do air conditioning cleaners work to eliminate odours?

Air conditioning cleaners typically contain powerful enzymes and deodorizers that effectively break down and neutralize odour-causing molecules, similar to some of the spray odour eliminators that are available. Whether sprayed into the air intake vents of your car’s air conditioning system or activated in your car interior, these cleaners circulate throughout the interior, targeting and eliminating odours at their source. This process helps to refresh the air within your car and leave behind a clean, pleasant scent.

Are air conditioning cleaners safe to use in my car?

Yes, most air conditioning cleaners are formulated to be safe for use in vehicles. However, it’s important to follow the manufacturer’s instructions carefully and avoid spraying the cleaner directly onto surfaces such as upholstery or dashboard components. Additionally, it’s a good idea to test the cleaner on a small, inconspicuous area first to ensure compatibility with your car’s materials.

How long does it take for air conditioning cleaners to work?

One of the key advantages of air conditioning cleaners is their fast-acting nature. In many cases, you can notice a significant improvement in the freshness of your car’s interior in less than half an hour after application.

Can air conditioning cleaners completely eliminate stubborn odours like cigarette smoke or pet smells?

While air conditioning cleaners are highly effective at neutralizing a wide range of odours, stubborn smells like cigarette smoke or pet odours may need multiple applications to get rid of the smells completely.

What scents are available in air conditioning cleaners?

Air conditioning cleaners come in a variety of scents, ranging from classic favourites like fresh linen and lavender to more exotic options such as tropical fruit or ocean breeze. Whether you prefer a subtle, understated aroma or a bold, invigorating fragrance, there’s sure to be something that suits you.

Alex Boyd is a Commercial Content Writer for Parkers, specialising in power tools and pressure washers. In his spare time, he enjoys DIY, travel, gardening and music.

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