| Nature of the air inside buildings or enclosed areas, as determined by odour, smoke, humidity, air conditioning (controlled air quality) or uncontrolled air quality, and which may provide useful information about the world (e.g. smell of leaking gas) or distractions (e.g. overpowering smell of perfume). |
Nature of the air outside buildings or enclosed areas, as determined by odour, smoke, humidity, ozone levels, and other features of the atmosphere, and which may provide useful information about the world (e.g. smell of rain) or distractions (e.g. toxic smells). |
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