But in time, the lack of oxygen took its toll.

At some point you lose consciousness from lack of oxygen.

His face had turned blue from the lack of oxygen.

When people get killed, it's usually through lack of oxygen.

Children don't have long before they turn blue from lack of oxygen.

Is it the lack of oxygen getting to the oil in the wood?

At 16,000 feet above sea level, the average person would get sick from a lack of oxygen.

Even if he did, there might be brain damage from lack of oxygen.

Some parts were literally dead in the summer from lack of oxygen.

The pressure is so low that people would pass out very quickly from lack of oxygen.