Candles can easily create indoor air pollution that is 10 100 times the level of outdoor air pollution caused by cars, industry, and electricity production.

External application only.

Apparently, the officer on duty did not let the bomber to enter the building and the blast burst at the entrance.

We are supposed to take off our shoes at the entrance.

The entrance to the toilet is very dirty.

There is no air on the moon.

There's no air on the moon.

Museum of Ancient Greek Technology, sign at entrance, Katakolon (Peloponnese, Greece).

At the entrance of a Japanese house, visitors are generally asked to take off their shoes.

A police cordon stopped them midway at the bottleneck of Goce Delchev Bridge.

Leaders of self defense groups at the entrance to Churumuco, a municipality in the state of Michoacán.

When the input exceeds a certain threshold, an output signal is instantaneously released.

Take off your hat when you enter a classroom.

Take off your hat when you enter a classroom.

She was taken to the in prison medicine unit and given some topical cream.

Arial view of Tbilisi, Georgia.

Aerial view of Angkor Wat temple

The only skin on the body that is non keratinized is the lining of skin on the inside of the mouth.

On entering the church premises I was almost broken by the sight of a busload of security forces.

Breath of Fresh Air

An airship is lighter than air.

I went out for a walk to get some fresh air.

Kitty kept looking toward the door, gathering courage not to blush when Constantine Levin should enter.

Simple solutions can make a vast difference to temperatures.

An aerial view of Guiuan, East Samar.

Aerial view of Maekelawi detention center in Addis Ababa.

Since there is no air on the moon, there is no sound at all.

To live without air is impossible.

Without air, nothing could live.

There is no air in space.

The picture was taken from the air.

Let in some fresh air.

Let some fresh air in.

Tom wanted some fresh air.

Let some fresh air in.

Spain, for example, was not running a fiscal deficit coming into the crisis.

Last summer I went to Xiamen University where I spent over 10 minutes verifying my ID card to enter, but I understand and support the measure. But cultural scholar Yang Zao s article echoed Jia s view It is indeed a shame for a university that daily tourists are being restricted while touts are saying, Give me 20 yuan, I will bring you into the university.

Attacks from the air on IS forces are necessary but insufficient.

Studies have already established the negative effect of air pollution on health.

An aerial view of contemporary Yerevan.(Image credit Bing Maps).

Another contributing factor to Japan's hay fever problem is air pollution.

Air Quality in China A Snapshot

We would die without air.

The picture was taken from the air.

She went outside to get a breath of fresh air.