Air Board

 Noted earlier, redundancy is the key to successful system restoration and automatic failover is the best solution in any emergency. This colonial design is very basic but illustrates both redundancy and failover recovery. Additional features permit the sharing of resources should your co-workers systems fail or become compromised. 

The internal maintenance on the chest pack is quite simple as it is simply an air supply board carried on your person. An example of an air supply board in a diving situation is shown here.

Knobs, dials and switches determine airflow and where that flow will be distributed. The complexity of the board varies with the type of air supply or mixed gas requirements for the dive.

A typical colonial air supply would be mainly a re-breather style O2 supply system.

The duality and failover aspects of this design account for many of the dangers that would be faced on a planet or moon where the atmosphere either does not exist or is toxic to human life.

We already know that the properties of both; lunar and Martian dust are such that it gets into and sticks to everything and we also know that fine particles can adversely affect air seals and mechanical mechanisms. The potential for failure of either is great, so system redundancy is the optimal design.

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