Fresh Air? Bring It In

In Australia we have relatively clean air, compared to the World Health Organisation (WHO) report which estimates that 9 out of 10 people worldwide breathe polluted air.  A quick visit to for a particular March day gave the pollution levels in Sydney at 20% below the WHO guideline levels, Brisbane was 30% below, Perth was 20% below, and Adelaide was 30% below.

This is great news for most Australians and means that the introduction of outdoor air into your working, eating, sleeping and play indoor areas is an easy way to improve your indoor air quality that naturally gets compromised by odour, moisture and high carbon dioxide levels.

The maximum ambient temperature on this same relatively warm March day in Sydney was 31C, Brisbane was 30C, Perth was 35C and Adelaide was 25C.  It is obvious that the only drawback to introducing this fresh outdoor air is the considerable energy consumption to condition the amount that we want to introduce.

If we handle this appropriately with energy recovery and based on an average desirable indoor temperature of 21C, the industry and commercial sector could benefit immensely, improving IAQ whilst minimising energy costs and resources.