Yes, when used properly. Although propane gas is naturally colorless and odorless, an odor is added to alert users in the event of a leak. To be familiar with the odor of propane gas, ask us for a sniff test. It's a pungent aroma similar to that of a skunk or rotten eggs. Storage, use, and handling of propane fall under the standards adopted by the National Fire Protection Association, Title 49 USC, and approved by the American National Standards Institute (ANSI).