Triz Principle # 39 Inert environment

When oxygen and other reagents in the environment are a problem, sometimes a good solution is to take them away, replacing them with chemicals that will not react with your device.

 A. Replace a normal environment with an inert one.

  • Prevent degradation of a hot metal filament by using an argon atmosphere.

B. Add neutral parts, or inert additives to an object.

  • Increase the volume of powdered detergent by adding inert ingredients. This makes it easier to measure with conventional tools.