Nitrogen and oxygen are needed in more senses than you might think.

Nitrogen is needed， for example.

- Agriculture

- Aviation technology

- Laser applications

- Food industry

- Plastics industry

- Oil and gas industry

- Shipping industry

- Electronics industry

- Storage tank cleaning

- Mining and Tunnelling

- Turbocompressors

- Chemistry and pharmacology

- Metal industry

- Welding and Arc Welding

- Welding and brazing

- Cutting

- Warehousing industry

- Packaging industry

- To prevent dust explosions

- Covering-transportation

- Crushing

- And much more...

Oxygen is needed， for example.

- Fish farming and fish farming

- Drinking water treatment

- Operating theatres and hospitals

- Metal industry

- Mining industry

- Health and beauty care

- Cutting and welding

- Glass processing and neon applications

- Veterinary clinics

- Biogas plants

- Flame heating

- Pharmaceutical production

- Food industry

- Diving centers

- Hyperbaric and decompression chambers

- And much more...