1. Introduction Objective is to create a field deployable automated CO 2 and N 2 O gas trapping device Trapping events occur every four hours Traps replaced after one month Components Flux Chamber Multiple Sub-chambers Desiccant Trap CO 2 Chemical Trap N 2 O Molecular Sieve Trap CO 2 Molecular Sieve Trap Rain-water Drop System

2. System Flow Chart

3. Material Selection Materials in contact with the gases must be chemically inert and gas impermeable Outer Casing and Sub-chambers White PVC – avoiding the greenhouse effect Desiccant Trap Nafion Tubing CO2 Chemical Trap 304 Stainless Steel Tubing Carbosorb CO2 and N2O Traps 304 Stainless Steel Tubing Molecular Sieve 5A Tubing PEEK

4. Fabrication Assembly Criteria – small profile, sturdy, and easy to use Airtight System Fittings and Adapters CAD Drawings Machined in the ME Shop