The Ops-Core® Special Operations Tactical Respirator (SOTR) is a half-mask respirator designed to provide protection against a wide range of oil and non-oil based particulate contaminants encountered by Special Operations forces during training and in operational environments. The Ops-Core SOTR offers 99.97% filtration efficiency against airborne particulates including lead, asbestos, fentanyl, lubricant mist, and explosive gunfire residue. The low profile design offers protection without interfering with the operator’s tactics, techniques, and procedures (TTP) and seamlessly interfaces with weapon systems for optimal effectiveness. It includes easy to adjust suspension straps to be worn with our without a helmet. Also available with or without a microphone (compatible with standard ground communications headsets) to enable radio communications.