The second main component of a closed circuit rebreather is the gas system.

The chimney began to give out smoke.

Smoke is rising from the chimney.

Smoke

Don't smoke.

Do you mind?

Smoke!

I can't.

Smoke was rising from the chimney.

Dino, cut the smoke. Cut the smoke!

Tobacco farmer handed out cigars.

Smoking or non smoking?

Black smoke came out of the chimney.

Smoking or nonsmoking?

Glowing smoke

Spooky chimney!

A chimney carries smoke from a fireplace to the outside.

The smoke went upward through the chimney.

No smoking!

Haze

Cigarettes.

You want a smoke?

Fumes and furnaces!

Throw some smoke.

Is that smoke I smell?

Longbottom Leaf.

Capacity to spit tobacco

Hey! Smoke!

The smoke poured out of the chimney.

Smoke poured out of the chimney.

Most smokers say that they want to quit.

The compromise which permits a smoker to smoke in the smoking corner was born after heated discussion.

After a heated discussion, a compromise was adopted. Smokers will be allowed to smoke in the smoking corner.

If so you should put No Smoking sign all over the places.

A chimney carries smoke from a fireplace to the outside.

Tom doesn't like people who smoke in no smoking areas.

No smoking in the theater.

Under the shadow of thick black smoke

And in the shadow of a burning smoke.

and the shadow of a smoking blaze

And the shade of black smoke.

And shadow of black smoke,

And a shadow of thick smoke.

and a shade of thick, pitch black smoke,

and the shadow of a dense black smoke,