In the section with smell-proof containers, you will find special containers for your herbs. They have at least a few major functions. They are airtight so the herbs don't dry out, don't lose their aroma or properties. They are designed to store herbs so the materials they are made of don't trigger any reaction with any organic material. Above all, these containers are smell-proof, which is very important and can save you from unnecessary trouble. Imagine you are in a small, confined space, e.g. in a car. If you have some herbs on you, their smell will be immediately noticed by a person that approaches the car and looks inside through an open window. If you keep your herbs in a smell-proof container, you won't have to worry about their smell being noticed by someone else. You'll be the only one who knows that you have some herbs on you. The benefits of this solution are obvious.