If you have not organized your community yet now is the time
https://www.liveliketheworldisdying.com/were-all-preppers-now/
i looked it up properly and according to https://faculty.washington.edu/dcatling/Catling2009_SciAm.pdf we basically only lose hydrogen and helium, and we do so very very slowly (3kg/s for hydrogen, 50g/s for helium).