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.

An airship is lighter than air.

She opened the window so as to let the fresh air into the room.

She went outside to get a breath of fresh air.

He opened the window to let in some fresh air.

He went outside for a breath of fresh air.

He put air in his tires.

Sunlight is no less necessary to good health than fresh air.

Animals cannot exist without air and water.

The bigger a city grows, the dirtier the air and water become.

Air is polluted in cities.