This model cannot be upgraded to use communications microphone. 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% (NIOSH P100) filtration efficiency against airborne particulates including lead, asbestos, fentanyl, lubricant mist, and explosive gunfire residue. The low profile design offers protection without interfering with operator’s tactics, techniques, and procedures (TTP) and seamlessly interfaces with weapon systems for optimal effectiveness. Includes easy to adjust suspension straps to be worn without a helmet. Offers at least 99.97% (NIOSH P100) filtration efficiency against airborne particulates including Lead, Asbestos, lubricant mist, and explosive gunfire residue Seamlessly integrates with NVGs and other eye protection products, as well as over the ear hearing protection products Two exhalation valves for easier breathing Easy to adjust suspension straps suspension straps to be worn without a helmet Flexible and lightweight silicone face piece with a wide, wraparound, and pleated design to enable the respirator to fit to a large variety of facial types Front mounted inhalation valves and cartridge ports for an enhanced field-of-vision and a quick one-handed filter changes. Includes: Head harness Mask 1 Filter Assembly (P100) Product Downloads User Guide
