When warm, light, air crosses mountains it rises into the upper atmosphere and does not fall back to the ground. In this, and other, ways wind changes with the terrain.

As far as knowing health's worth once you've lost it goes, that's the same thing with parents, water or air.

The air is wonderful in the woods.

The air was blocked off, extinguishing the fire.

Throat and nose membranes hurt by dry air allow cold viruses to enter more easily. It is important to carry out sensible counter plans against the cold with heaters and against the dryness with humidifiers.

However the air's bad in Tokyo, and there are too many people so I can't settle down.

With this you can make a clean sweep of leftover breakfast smells and such to make the air clean.

Please air the room.

There was a tense atmosphere in the room.

Fill the bottle to the top so as to exclude all air.