Barrier Spray is a nasal spray that creates a hostile micro-environment in the nose in which many airborne microbes cannot survive. Captures and deactivates airborne germs to help stop cold and flu symptoms. The nose is the primary route of infection for all airborne microbes. Thus, Nasal Spray creates a physical barrier layer in the nasal cavity within a few sprays, which reduces the risk of infection. Eat, travel and work safely outside the home with this extra protection Barrier Spray. Main Features: OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.