Because most are built near the ground, they do not have good air circulation.

There was certainly some land of air circulation system at work, although what type I could not guess.

The space thus provided is believed to help air circulation.

Remember, too, that the plants are going to need good air circulation and light.

It was really designed for the environment, with the natural light and air circulation.

These problems are much more likely to occur if air circulation is poor.

"Believe me, it makes you very conscious of things like air circulation systems."

The edges of all three parts were left free for air circulation.

The concern was that lack of air circulation would make this worse.

Attempts were made to improve air circulation, but nothing helped.

All types need little or no fertilizer and good air circulation.

The hut that the women lived in was kept dark with very poor air circulation.

But the real basics are good soil, air circulation and light.

I have good air circulation: the wind up there is fierce.

The computer does not know enough about the general air circulation to be able to predict the weather.

"It cuts off the air circulation, in and out of Control."

Good air circulation helps, too, so don't crowd your plants.

Use a small fan if necessary to provide adequate air circulation.

The door to the meeting room had been left ajar to help the air circulation.

Also plants have competition from tree roots and air circulation is poor.

Too deep a mulch would cut off air circulation needed by the soil.

The system fan was on, but it produced more noise than air circulation.

These two factors play a key role in air circulation and cloud formation.

Some of them are also equipped with extra fans to increase air circulation.

She pulled a light chair to the wall under an air circulation vent, and stood on it.