3M HF-801 Secure Click Half Mask Medium 3M™ Secure Click™ Reusable Half Face Mask HF-800 Series is available as two versions, HF-800 and HF-800SD. The HF-800SD versions have a speaking diaphragm. Both versions are available in three sizes. 3M™ Secure Click™ HF 800 Series Half Mask Reusable Respirator helps protect against particulates and a wide variety of gases and vapours when used with approved 3M™ Secure Click™ cartridges and filters, Greater breathability
