These exit bags provide a child resistant solution to safeguard products, as the zip closure requires two hands to successfully open, making it difficult for children to unfasten, and they also have an option for heat sealing. They have a high moisture, oxygen, and smell proof barrier to ensure the contents stay fresh and prevent odors from escaping. These barrier bags are classified in accordance with ASTM D3475 standards, as well as lab tested for CPSC compliance.