Ducted Aircon Installation

All You Need to Know About Air Conditioner Filters

Here in Australia where we often experience temperatures at both extremes of the spectrum, air conditioning systems are a vital appliance. One of the most important components of an air conditioning system is its air conditioner filters.

Essential for providing clean air and optimal system efficiency, the air conditioner filter works diligently to sift out dust, pollen, and other air pollutants. It provides you and your family with cleaner air to breathe.

Investing in the right filter contributes to long-term cost savings by enhancing the efficiency of your unit. It also plays a key role in nipping potential respiratory problems in the bud before they occur.

Whether you’re battling hay fever during spring, concerned about pet dander irritating the kids, or looking to keep smoke and grease at bay, we’re here to help you navigate the world of aircon filters, and make your home as healthy as possible.

The Significance of Air Filter Maintenance

Maintaining air conditioner filters is of utmost importance. Regular upkeep can significantly impact the quality of air within your home. During bushfire seasons, for example, filters prevent smoke and ash particles from infiltrating your indoor space. In urban areas, filters help combat the infiltration of dust and pollutants.

For Australian homeowners, staying on top of filter maintenance prolongs the lifespan of your air conditioning system. It also promotes a healthier living environment; one that is free of allergens and pollutants that may compromise the health of your family.

cleaned air conditioning filter

Understanding Air Conditioning Filters

For homeowners, understanding the different types of air conditioner filters available is crucial. There are numerous types, including:

  • HEPA filters: Known for their high efficiency in trapping microscopic particles
  • Activated carbon filters: that excel in removing odours
  • Standard fibreglass filters: Economical, disposable, and designed to block large particles.
  • Pleated media filters: Made from higher-quality fabric, these filters trap smaller particles and last longer than fibreglass options.
  • Electrostatic filters: Utilise static electricity to attract and hold particles. Available in both disposable and washable versions.

Regularly changing these filters not only ensures cleaner air but also maintains the efficiency of air conditioners. This typically results in greater energy savings and a more comfortable home environment.

Choosing the Right Filter for Your Air Conditioning System

Choosing the right air conditioning filters is a decision you need to tailor to your specific living environment and health needs. Here in Australia, this is especially important, as the climate and local flora can significantly influence air quality.

Always consider the efficiency of the filter in capturing various particles, such as pollen, which is prevalent during certain seasons, or pet dander if you have furry family members. For homeowners in bushfire-prone areas, it’s essential to have air conditioning filters that can effectively remove smoke particles. All in all, it’s about striking the right balance between air quality, energy efficiency, and filter longevity.

Opting for a filter with a suitable MERV rating, which indicates its ability to trap smaller particles, can make a substantial difference in the air you breathe at home.

Installation and Replacement Of Air Filters

Replacing air conditioner filters is a relatively simple task that homeowners can confidently do themselves to make sure their air conditioning systems operate efficiently and effectively. Of course, if you’re not confident in changing them yourself, you can always call on a licensed air con technician to do it for you.

First up, determine the right air conditioner filter size and type for your particular system. This is vital, as the wrong filter size can inhibit performance. To replace air conditioning filters, first locate the filter compartment. You’ll typically find this along the return duct or within the indoor unit itself. Carefully take the old filter out. Be sure to note any directional arrows that will help you to correctly insert the new filter.

Ideally, you’ll replace your filters every three months. In bushfire-prone regions or high-pollution areas, you may need to do it more frequently. This will both help to maintain optimal air quality and prevent unnecessary strain on your air conditioning unit.

Maximising Energy Efficiency and Reducing Costs

Maximising air con system energy efficiency and minimising running costs often begins with the simple step of maintaining your air conditioning filters. A clean filter guarantees smooth airflow and stops your air conditioning unit from overworking. This helps to bring about noticeable energy savings.

Given the dynamic range of temperatures across Australia, an efficient air con system is key to keeping your home comfortable without racking up exorbitant energy bills. Regularly checking and replacing your filters can prevent the build-up of dust. dirt and debris, which can clog the system and decrease efficiency.

Taking this simple maintenance routine on board both extends the life of your air conditioning system and builds a more sustainable household by keeping energy consumption to a minimum.

air conditioning filter

Common Air Filter Mistakes to Avoid

As well-intentioned as you might be in sticking to keeping your air filters performing at their best, mistakes happen. We’re human after all. So here are some common mistakes to steer clear of:

  • Ignoring regular changes: Allowing filters to get blocked reduces efficiency and airflow. We recommend cleaning your filters every few weeks for optimal performance.
  • Wrong size installation: Using an ill-fitting filter compromises air quality and system performance.
  • Choosing the wrong type of filter: Not all air conditioner filters suit every need. Installing the wrong type for your system may affect air quality.
  • Forgetting seasonal adjustments: Some environments require more frequent changes, especially during high pollen or dust seasons.

By avoiding these common pitfalls, you have a better shot at making sure your air conditioner operates optimally all year round.

Wrapping Up: The Vital Role of Air Filters

The significance of air conditioner filters in maintaining a comfortable and healthy living environment simply cannot be downplayed. Air filters purify the air you breathe by trapping dust, pollen, and other pollutants. In addition, they also enhance the efficiency and longevity of your air conditioning system.

By choosing the right filter and avoiding common maintenance mistakes, you can make sure your home remains a sanctuary of clean air and comfort. Adopt and adhere to the routine of filter maintenance as a key part of your home care practices to enjoy the dual benefits of improved air quality and energy savings.

Please note: This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.

Published: 2024-03-12

Air Conditioning Specialists You Can Trust

Our Promise Going Further

Our specialists pride themselves with honest reliable services


Our fixed pricing structure guarantees transparency. You will always be quoted the complete costs before work can commence, and our expert technicians will guide you through the process.

Our specialists pride themselves with honest reliable services


Not all jobs are created equal, but all jobs are equally important. Whether it's a simple repair or ducted air conditioning install, we apply the same high levels of dedication and service no matter the scope of the work.

Professional Expert Technicians


Home is your castle. Your pride and joy. Our well-spoken technicians will show respect towards you and your property and always clean up after themselves.

Technician Zip Pay Payment Options Image
Technician Zip Pay Payment Options Image

Now Available!

Air Con finance options** with trusted pay later options

What Our Happy Customers Have to Say

Better service starts here

5 stars rating

I called them in the morning, and they were at my doorstep within a few hours. The technician was quick to identify the problem, had the necessary parts, and repaired my AC unit in no time.

Marion Minguillon - WA
5 stars rating

My AC was acting up, and I was worried about a hefty repair bill. However, the technicians quickly identified a minor issue, fixed it, and didn't overcharge me. I appreciate their honesty and expertise in troubleshooting the problem.

Sara Cribbs - VIC
5 stars rating

Thorough filter cleaning left no room for concerns, resulting in cleaner air and AC that requires less maintenance. Our home's air quality has improved dramatically, and we couldn't be happier with the outcome.

Lorenzo Rodriguez - SA
  • Mitsubishi Heavy Industries Air Conditioning Logo

    When looking for a leading supplier of wall mounted split systems, Mitsubishi Heavy Industries air conditioners offer reliable, high-quality heating and cooling perfect for Australian family homes.

  • Temperzone Air Conditioning Logo

    Temperzone is the award-winning global manufacturer of air conditioners and leaders in climate innovation with a wide range of systems suitable for Australian homes and commercial applications.

  • Bonaire Air Conditioning Logo

    Bonaire heating and cooling systems are economical, yet high performance. Their reliable air conditioners are manufactured in Adelaide and expertly designed to withstand year-round weather extremes.

  • ActronAir Air Conditioning Logo

    For incredible home comfort, you want ActronAir. Ducted systems or wall hung splits, ActronAir air conditioning has the best residential cooling solutions. You'll never complain about the heat again.

  • Kelvinator Air Air Conditioning Logo

    Australians have enjoyed Kelvinator's cooling reliability for over 80 years. Whether you have a Kelvinator window air conditioner or Kelvinator split system, Metropolitan is here to help 24/7.

  • York Air Air Conditioning Logo

    For optimal year-round comfort from your AC unit, York is the name to know. Distributed by Bonaire, York air conditioners Australia offer superior AC solutions perfect for our Australian climate.

  • Lennox Air Conditioning Logo

    Lennox is a globally recognised brand with a great range of energy-efficient HVAC systems. Choose a Lennox air conditioner when craving that desirable climate control and year-round comfort.

  • LG Air Conditioning Logo

    LG is a world leader in consumer electronics, and its air conditioners are no different. From smart split systems to energy efficient ducted air conditioning, LG air conditioning does it all.

  • Midea Air Conditioning Logo

    Midea is an Australian giant with an international reputation for quality split system air conditioning. You can also find portable coolers and window boxes among the Midea air conditioner range.

  • Mitsubishi Electric Air Conditioning Logo

    Mitsubishi Electric supplies premium residential air conditioners in Australia. Their sophisticated designs, including their sleek wall split system models, are built to offer long-term comfort.

  • Panasonic Air Conditioning Logo

    The latest and greatest Panasonic air conditioners go beyond heating and cooling with air purifying features for healthier breathing. Sounds good, doesn’t it?

  • Rinnai Air Conditioning Logo

    Rinnai is a trusted household name in all things heating and cooling. From the Rinnai gas heater to inverter splits and reverse cycle ducted systems, there's a Rinnai solution for every Aussie house.

  • Samsung Air Conditioning Logo

    Samsung Air Conditioning is known for its reliability and performance. These efficient climate systems are as highly regarded as Samsung’s TVs, home appliances and popular Galaxy smartphones.

  • Brivis Air Conditioning Logo

    Brivis by Rinnai has been a titan in the air conditioning game for 50 years. With an impressive heating and cooling system range, the Brivis name goes hand in hand with quality and longevity.

  • Braemar Air Conditioning Logo

    Braemar has all your heating and cooling needs sorted. Evaporative cooling, ducted gas heating, space heaters, wall heaters, split systems and reverse cycle - Braemar has you covered year-round.

  • Carrier Air Conditioning Logo

    The Carrier air conditioning range is known for sustainability and affordable prices. As a leading Australian AC supplier, Carrier strives to improve the industry through innovative cooling solutions.

  • Breezair Air Conditioning Logo

    Are you after a market leader in evaporative cooling? You need Breezair. Breezair evaporative coolers are manufactured in Australia so you know you're getting cooling to stand the Aussie heat.

  • Kaden Air Conditioning Logo

    Simple solutions are the foundations of Kaden heating and cooling. Products like the Kaden split system are perfect for the ever changing Australian climate so you can always remain content at home.

  • Celair Air Conditioning Logo

    Celair is a leader in ducted evaporative air conditioning with over 40 years of experience behind them. Manufactured right here in Australia, Celair heating and cooling supports local Australians too.

  • NEC Air Air Conditioning Logo

    Beat the heat with a NEC split system. NEC has a heating and cooling solution that will keep you comfortable in all seasons. Experience superior energy efficient heating and cooling with NEC.

  • Coolair Air Conditioning Logo

    As an Australian owned and operated manufacturer, Coolair evaporative air conditioning makes a great high performance companion for anyone looking to escape the harsh heat of our great southern land.

  • Sanyo Air Conditioning Logo

    Sanyo air conditioning models were known for providing trusted AC performance. Although Sanyo no longer operates, Metropolitan can still offer expert 24/7 service to your existing Sanyo system.

  • Fujitsu Air Conditioning Logo

    Stay comfortable all summer long thanks to Fujitsu air conditioning. Fujitsu ducted air conditioning units are perfect for Aussie homes so when you need repairs or servicing, call Metropolitan.

  • Sharp Air Air Conditioning Logo

    With over 100 years in the industry, Japan’s Sharp Air Conditioning is known for luxury products. Sharp air cons provide convenient and effective cooling performance, to deliver year round comfort.

  • Hitachi Air Conditioning Logo

    Are you ready to discover the incredible range of Hitachi air conditioners? We’re talking split systems, wall mounted, ducted heating and cooling and more. So plenty of options for achieving comfort.

  • Stadt Air Conditioning Logo

    STADT air conditioning is synonymous with high quality Australian owned ducted heating and cooling. For any STADT air conditioning service and repair, we are your Australian experts.

  • Haier Air Conditioning Logo

    With over 30 years in the industry, Haier is known internationally for its energy efficient and smart heating and cooling solutions. Haier heating and cooling is just a tap away.

  • Vulcan Air Conditioning Logo

    When you're after a Vulcan air conditioning service, you want Metropolitan. We're experts in Vulcan climate control, providing repairs and servicing for air conditioners.

  • Toshiba Air Conditioning Logo

    Toshiba air conditioning makes use of innovative DC Hybrid Inverter technology which automatically provides high capacity heating and cooling when necessary and minimises running costs when it’s not.

  • TECO Air Conditioning Logo

    TECO has been heating and cooling Australian homes for over 30 years. With split systems, multi splits, window/wall air conditioners and ducted air conditioning, TECO has the whole home covered.

Metropolitan Air Conditioning Service Reviews Metropolitan Air Conditioning Service Reviews