Unfortunately, they are not. While many wooden dugout pipes provide a tight enough fit to keep your dry herb secure, they are not airtight. Airtight is the quality you need in a container to make it smell-proof. While wooden dugout pipes are some of our favorite products, you will want to be sure you have a separate, smell-proof container if preventing your dry herb from being smelled is a priority concern for you. Airtight containers are a great way to keep your dry herbs fresh, regardless, so consider adding some to your smoking kit!