It is recommended to use one atomiser per scent to avoid cross-smell contamination. If going on a plane or overseas trip and putting item in luggage, it is recommended to put in provided pouch in case of pressure change/spillage. Be sure to tighten the lid properly to avoid spillage and always twist to reveal spray nozzle, do not pull out of canister.
NOTE: this has a glass element, please be careful when handling, we recommend only using with perfume/cologne, not oils as it may affect the spray nozzle.