The half masks of the 3MSecure ClickHF 800 series are designed to protect effectively and comfortably against many of the common gases, vapors and particles in the industrial environment in conjunction with the corresponding filter range. They are available in three sizes and are optionally equipped with a voice membrane (HF 800SD) to facilitate communication during work.Low breathing resistance: Easier breathing and comfort thanks to the world's first 4-fold air flow filter system. Two dual airflow filters at the respirator together form four airflow paths for easier breathing. Easy to use: The new 3MSecure Clickseries is characterized by a quick and easy filter connection. It works as easily as a safety belt. Simply align the filter into the fitting and snap it into place until you hear a click. Then you can be sure that the filters are connected correctly. The quick and easy inspection of the sealing seat at the push of a button helps to increase confidence in the secure sea