April 2024

What’s The Perfect Size Ducted Air Conditioning Filter For Your Home?


Choosing the perfect size ducted air conditioning filter can sometimes be confusing, especially if you’re unsure of what size your home requires. There are three primary sizes: small, medium and large, with each category having its own unique benefits, as well as its own set of advantages. This article will explain the differences between each size so that you can make an informed choice on what is right for your home.

Small Ducted Air Conditioning Filter

Small air filters offered by most brands is approximately 0 – 699mm or smaller. This is a great option for small homes, places with only one air conditioner, and homes that do not have central air. If you’ve measured and found that your ducted air conditioner is smaller than 700mm, then a small air filter will suit your needs.

Medium Ducted Air Conditioning Filter

Medium ducted air conditioning filter are designed for filters that are 700 – 999mm or smaller. Medium ducted air conditioners should be used in areas with a lot of traffic, such as a restaurant or office building. The airflow in medium ducted systems moves at about 1,000 cubic feet per minute (CFM).

Large Ducted Air Conditioning Filter

Large air filters are designed for filters that are 1000 – 1500mm or smaller. These filters have a wider surface area and can capture more dust particles and allergens than a medium or small filter. A large filter is great for families with pets, allergies, asthma, or smoke-filled households.  One downside of this type of filter is they often cost more than other sizes due to their larger size. Some families find it beneficial to get two smaller filters for one unit instead of one large filter in order to save money.

Ducted Air Conditioning Filter – Small, Medium and Big

A ducted aircon filter is an essential appliance, but not all homes require the same size of filter. The three sizes to choose from are small, medium, and large. A small sized air conditioning filter will be adequate for a room with a window unit or central cooling system that has a smaller return-air duct. Medium sized filters are most often used in rooms with central cooling systems and larger return-air ducts. Large filters are generally reserved for spaces like warehouses and restaurants where there may be more dust particles than in a residential setting.


So, what’s the best size of AC filter for your home? If you live in a one-bedroom apartment and have no pets, go ahead and buy the small sized AC filters. If you live in a two bedroom apartment with pets, go ahead and buy the medium sized AC filters. For those living in bigger apartments or houses without pets, go ahead and get yourself some large sized AC filters. Remember: When it comes to air conditioning use at home, always err on the side of caution!

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