How to Tell If Bug Spray Is Expired

 Bug spray is a summer necessity but may not work if it has expired. On hiking trips, at the beach, or at summer camp, bug spray can be a life-saver. It is especially important for babies and children, or others who are sensitive to irritating stings and bites. Depending on the brand, though, last season's bug spray may not work this season. As with many other products, the efficacy of bug spray can decrease over time and may not be safe to use after it has expired. Luckily, there are several easy ways to check bug spray for expiration.

Difficulty:Easy
Deet, a common ingredient in bug spray, does not expire. If your bug spray contains deet, check the container now and then to make sure it is in good shape, but otherwise the spray should remain usable.
Regardless of the expiration date or age of the product, if your bug spray causes a rash or other irritation, discontinue use immediately.
If the container looks old or corroded but you believe that the spray is still good, be very careful while spritzing it. If the nozzle is blocked or damaged the spray may shoot out in unexpected direction. If you get bug spray in your eyes, rinse them thoroughly with plenty of water.