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https://www.tinderrocketry.com/rocketry-co2-ejection-system
Good for use at high-altitudes (20k ft+) b/c completely pressure sealed
USCRPL Recovery Presentation https://docs.google.com/document/d/1-FvnbYQmETId8Ko6nY0LdCxwcloM4aGdy2pHURnmPTc/edit
https://ideaexchange.uakron.edu/cgi/viewcontent.cgi?article=3029&context=honors_research_projects
This is an article someone wrote about how they designed/built/tested a CO2 deployment mechanism using a solenoid