LDST

iss050e053932 (3/3/2017) --- A view of Long Duration Sorbent Testbed during Inlet Filter change. The Long Duration Sorbent Testbed (LDST) investigation exposes desiccants and CO2 sorbents to the ISS atmosphere for an extended period (such as one year) before returning them to earth for analysis of contamination level and capacity loss. The results will determine which types of sorbents would be most effective on long-term missions to Mars or other destinations.