> Oxygen is a gas that is colorless, tasteless, odorless but chemically very reactive.
> It constitutes 21% of air by volume, is very reactive and essential for sustain life on our planet.
> In its liquid state at atmospheric pressure it is extremely cold at -183 ˚C.
> One volume of liquid oxygen gives approximately 800 volumes of gas at ambient conditions.

Applications:

Welding and metal fabrication

> Cutting Used in plasmas and lasers

Water and wastewater treatment

> Sewage treatment plants – supplement or replace air in the aeration basin
> Water – used to generate ozone for disinfection

Biotechnology and Pharmaceutical

> Bioreactors – vital for cell growth applications

Health care

> Respiratory – used in hospitals and as a homecare mode to help with respiratory issues
> Hyperbaric chambers – helps in healing wounds and decompression sickness

Food & Transport

> Live fishes transport – supplies fishes water with oxygen preventing from suffocation