The phrase "air purity" is correct and usable in written English.
It can be used when discussing the cleanliness or quality of the air, often in environmental or health-related contexts.
Example: "The study focused on the effects of air purity on respiratory health in urban areas."
Alternatives: "air quality" or "atmospheric cleanliness".
Several complete packaged purification systems are available that take untreated compressed air and purify it to the highest air purity standards.
VIETNNA, Jan . 21— A new state Commission for the Pro tection of Air Purity started its work in Budapest this week, exemplifying rising concern throughout Eastern Europe over the deterioration of the environment.
Auto Mode is an awesome feature which links the Aware and Sense+ and really lets you stop worrying about air quality, as the Aware measures air purity and adjusts the fan levels of the Sense+ accordingly.
The animals were maintained at 22± 3°C under controlled humidity (45% to 65%) and air purity with a 12h-light/dark cycle, with free access to food and water.
Similarly, tests of air purity confirmed that there was also a better atmosphere back in the day.
Americans, for the first time, were alerted to untold dangers of pesticides being used in the world around them, affecting water quality, air purity and food toxicity.
Nevertheless, in the current mood of disillusionment with politicians, Hazare's air of purity, his straightforward message and his methods evoke a ready response.
That evening, despite the gliding mists, the blue encircling hills were discernible against the night, for the upper air had purity; a sky was there, stars were in it, and a scrap of moon.
Jon clearly enjoys these "third things": so far this year he's released a cover of Goodbye Horses with Wild Beasts' Hayden Thorpe and a new version of Breathe This Air with Purity Ring's Megan James (because "I think you should be open to letting songs have a life beyond just one version").
Natural light and elemental images from Dutch cinematographer Tibor Dingelstad ramp up the general air of religious purity.
Guidance is given of how to manage these risks in order to obtain food-grade compressed air of a purity in agreement with existing standards.
