Absolutely. SodaStream carbonators are manufactured to exacting specifications that include many unique safety features to protect consumers. Carbonators 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 cylinder rises above threshold levels. Please do not expose your carbonator to extreme heat (such as travel in the trunk of a car, or right next to an oven, stove or fireplace.) Please see above for more information on carbonator safety.