More than ever before, every home needs longer lasting hygienic air.

Posted on 19 May 2020

With many of us working from home due to the challenges and restrictions of COVID-19, not to mention on-line learning for school children, we are spending more time at home than ever before. Our in-home working, schooling and living can increase the level of pollutants in our homes including dust, debris, mould spores and other allergens. With this in mind, ensuring indoor air quality is maintained, fresh and clean as possible is vital for our health and wellbeing. So, how can we achieve this?

Hitachi Wall Split System new hygiene feature

How often do you clean your air conditioning system? Not often enough is probably a fair assumption! The Hitachi Frost Wash technology, S Series split system is a revolutionary ‘market first’ cleaning technology which enables cleaner, fresher air for your and your family all year round. Frost Wash achieves a 91% reduction^ of bacteria and 87% reduction^ of mould in your unit.

How does it work?

The Hitachi Frost Wash function automatically puts itself into a clean mode every set number of running hours. Frost Wash works by freezing moisture on the surface of the indoor unit heat exchanger, capturing and then flushing away impurities that can build over time. Providing your indoor environment with fresher, cleaner air. And, doesn’t rely on you to clean it all the time!


Clean air in room

CHOICE Recommended

The Hitachi S-Series Wall mounted system has been Recommended by CHOICE as a leading air conditioning product. It also has a 4.5-star energy rating* for both heating and cooling and 5 year warranty.

Choice rating
Energy Rating


* Star ratings based on: RAS-S25YHAB / RAC-S25YHAB

^ Feature introduction based on RAS/RAC-S35YHAB. Tested by Kitasato Research Centre of Environmental Science. Test No. 2019_0154. Reduction effects of bacteria and mould were observed by operating Frost Wash once.

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