Clean air quality

Using your Split System during Fire Season

Many people have been concerned about the air quality of Melbourne during this fire season. With stores running out of face masks and air purifiers, many of you would be happy to hear that you already have something at home that can drastically improve your air quality. Your split system! 

Yes, your split system is designed to improve your air quality and should be used during days like today to filter impurities out of the air indoors.

How? You ask:
Well it all comes down to how split system air conditioners actually work.


Split system air conditioning works by re-cycling indoor air reducing or increasing it’s temperature, depending on your temperature and mode setting.

On cooling, warm indoor air is drawn into the split system where it travels over a frozen coil covered in icy refrigerant which has been pumped up into the indoor unit from the outdoor condenser. This cooled air is now returned back to the room after having been cleaned via your systems filters, removing any impurities such as dust, allergens and soot that may be present.

Warm air is then pushed into the outdoor condenser which is blown out of its fan and to the outdoors. Hence, hot air is always felt when walking past the outdoor fan.


Well, because split systems are completely sealed systems they are never bringing outdoor air into your home. By recycling the indoor air it works by improving the indoor air quality and pushing hot air out.

How does it do this?
Keep in mind the important role filters play in keeping your air clean. For instance, Daikin product manager Raj Singh says most air conditioners come with a pre-filter that captures larger particles, but Daikin split systems are fitted with more precise and advanced technology, the Titanium Apatite Deodorising Air Purification filter. This Titanium Apatite Deodorising Air Purification filter traps microscopic particles, decomposes odours and even deactivates bacteria.

If you don’t believe us, just open up your indoor unit and take a peek at your filter. You might be blown away by how much dust and debris they actually accumulate.

If you leave this in your unit, it can drastically affect the quality of the air your family is breathing. Systems with dirty or clogged filters can circulate dust throughout the home, affecting air quality. Therefore, it’s important to keep your air conditioner clean. As a rule, Rapid Cold recommends cleaning your filters monthly, particularly when using in air quality this low.

Even in high humidity, we suggest using your split system air conditioner, which will work to extract water from the air and reduce humidity to keep dust mites and other allergens at bay. Therefore, in a sealed home with the split system running, you should see an improvement in minutes.


Call Rapid Cold today if you would like to upgrade to a Daikin or Mitsubishi Electric today!