The 3M Secure Click HF-800 Series half masks are designed to provide effective and comfortable protection against many common gases, vapours, and particles in industrial environments when used in combination with the appropriate range of filters. They are available in three sizes and equipped with a speaking diaphragm to facilitate communication during work. Low breathing resistance allows for easier breathing and comfort thanks to the world's first 4-way airflow filter system. The new 3M Secure Click Series is characterized by a quick and simple filter connection. The speaking diaphragm was designed to facilitate communication while working. The silicone face seal with a patented, flexible nose profile is soft and offers a comfortable feel for the wearer. The half mask series is used in conjunction with 3M Secure Click filters from the D8000 (gas/vapour filters), D3000 (particulate filters), and D7000 (particulate insert filters) series against a wide range of gases, vapours, and particles in accordance with EN approvals.