Changing Soda Lime for Vet Nurses - When should it be done?
Soda lime absorbs carbon dioxide (CO 2) through a complex chemical reaction, which also requires moisture to occur.. So ensure you store your soda lime as per the manufacturer's instructions, and if your soda lime is sitting in the canister for any length of time, change it even if it hasn't reached the 6 to 10 hours of use yet, as dehydrated soda lime cannot absorb CO 2 (1,6).