These respirators are proven to be simple to handle and comfortable for the wearer. The exhalation port provides increased durability, easy cleaning and reduced breathing resistance, which helps to increase comfort. This respirator has the 3M bayonet connection system allowing connection to a broad range of twin light-weight filters to protect against gases, vapors and particulates depending upon the wearers individual needs. Use with two each of MT6001 cartridges, MT5P71 particle filters and MT501 adapters for a complete mask.