Absolutely, without a doubt, yes. SodaStream carbonating cylinders are manufactured to exacting safety specifications to protect consumers. Carbonating cylinders are safe at virtually any altitude (our customers in the Swiss Alps can attest to that!) and are specially equipped with a safety valve that will harmlessly release the gas in the unlikely event that the pressure within the carbonating cylinder rises above threshold levels. Did you know that SodaStream original carbonating cylinders are also quality tested 3 times when refilled?