Rebreather questions

[Inspirationdiver]

Sorry for the late response, the scrubber canister in the Inspiration is rated for 3 hours. Many people will extend their time to 4 or 5 hours but this is against recomendations by Ambient Pressure Diving. Extending the time on the scrubber greatly increases the risk of CO2 breakthrough, so personally I usually dump my scrubber after 3 hours. I value my life more than the few dollars I will save by overusing it. The amount of scrubber chemical needed to fill the canister fits almost perfectly into 1 gallon ziploc freezer bags. I usually double or triple bag it to prevent the chemical from contact with air. So, depending on the trip, I usually only need to fill the scrubber at home, and bring one or two extra fills in ziploc bags.