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Did you know that, on average, we inhale around 8,000 litres of air every day? Did you also know that the quality of air we breathe has a large impact on our overall health?

Mitsubishi Heavy Industries Clean Air Technology is a combination of several different yet specialised components, systems and functions within Mitsubishi Heavy Industries split system air-conditioners that work in synchronization to help improve indoor air quality.

While air conditioners are perfect for keeping us cool in summer and warm in winter, they’re also able to help improve air quality which can help ensure you and your family stay healthy and comfortable.


Working together, Mitsubishi Heavy Industries’ Clean Air Technology;


clean air technology in living room

Allergen Clear Filter®

The Allergen Clear Filter® in Mitsubishi Heavy Industries split systems captures airborne particles which include pollen, dust and other irritants1. The Allergen Clear Filter® contains a specially formulated Enzyme-urea compound which breaks down the structure of captured allergens and deactivates bacteria2, mould and viruses3.


Recent tests have confirmed that the enzyme-urea compound contained within Mitsubishi Heavy Industries’ Allergen Clear Filter is effective in the de-activation of SARS-CoV-2, the virus that causes COVID-194

allergen clear filter deactivates SARS that causes COVID-19

Photocatalytic Deodorising Filter

The Photocatalytic Deodorising Filter is the next line of defence. This filter captures additional airborne particles, such as bushfire smoke and other fine particles as small as 2.5μm, before neutralising odour causing molecules they may be carrying. This filter is easy to wash and helps ensure your home stays smelling nice and fresh!

* Not included in the Ciara™ series

Allergen Clear Operation

This multi-stage operation involves the unit cycling between heating and cooling modes to generate internal moisture which in turn activates enzymes within the specialised Allergen Clear Filter. These advanced enzymes then break down allergens and deactivate bacteria2 mould and viruses3 that have been captured by the Allergen Clear Filter. The Allergen Clear Operation is manually activated by pressing the ‘Allergen’ button on the remote control. The operation will runs for 90mins before stopping automatically. We recommend running this once every few weeks.

Self Clean Operation

Self Cleaning Mode is a separate function which works best after using the Allergen Clear operation. The Self Cleaning operation is designed to dry the internal components, including fan and filters. This helps eliminate mould and helps deliver clean and odour free air. The Self Clean operation is designed to be run after the Allergen Clear Operation and it’s recommended that this operation is used every few weeks. The Self Clean operation can be manually activated via the remote control.

Anti-Microbial Fan

To prevent the growth of mould and other microbes, the fan within Mitsubishi Heavy Industries split systems has undergone specialised anti-microbial treatment. This helps inhibits the growth of odour causing mould5 and microbes6 and works to help your room stay nice and fresh.


1 Test method: ELISA colorimetric method Laboratory: Independent administrative agency national hospital mechanism Sagamihara Hospital, No.1536

2 Test method: ELISA colorimetric method / ELISA fluorescent method Laboratory: Independent administrative agency national hospital mechanism Sagamihara Hospital, No.1536

3 Test method: TCID (Infection value 50%) Laboratory: Foundation of Kitazato Environmental Science Center, No.15-0145

4 Test method: Anti-viral test using severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Laboratory: Japan Textile Products Quality and Technology Center 

5 Test Report No. : 17067139001 – 0301 JIS Z 2801 Antimicrobial Products – Test for Antimicrobial Activity and Efficacy

6 Test Report No. : 17067139001 – 0501 JIS Z 2911 Methods of Test for Fungus Resistance

*Photocatalytic Deodorising filter not included in Ciara series