![File:US Navy 100806-N-4440L-051 Equipment Operator Construction Apprentice Steven Lott dons his chemical, biological, radiological (CBR) gear during a mission oriented protective posture (MOPP) level 4 drill.jpg - Wikimedia Commons File:US Navy 100806-N-4440L-051 Equipment Operator Construction Apprentice Steven Lott dons his chemical, biological, radiological (CBR) gear during a mission oriented protective posture (MOPP) level 4 drill.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/US_Navy_100806-N-4440L-051_Equipment_Operator_Construction_Apprentice_Steven_Lott_dons_his_chemical%2C_biological%2C_radiological_%28CBR%29_gear_during_a_mission_oriented_protective_posture_%28MOPP%29_level_4_drill.jpg/1200px-thumbnail.jpg)
File:US Navy 100806-N-4440L-051 Equipment Operator Construction Apprentice Steven Lott dons his chemical, biological, radiological (CBR) gear during a mission oriented protective posture (MOPP) level 4 drill.jpg - Wikimedia Commons
![Completing his Mission-Oriented Protective Posture response level 4 (MOPP-4) suit, US Air Force (USAF) AIRMAN First Class (A1C) Chad R. Lynch, 31st Civil Engineer Squadron (CES), Rapid Runway Response (RRR) team member Completing his Mission-Oriented Protective Posture response level 4 (MOPP-4) suit, US Air Force (USAF) AIRMAN First Class (A1C) Chad R. Lynch, 31st Civil Engineer Squadron (CES), Rapid Runway Response (RRR) team member](https://cdn10.picryl.com/photo/2002/11/20/completing-his-mission-oriented-protective-posture-response-level-4-mopp-4-40dcc6-1024.jpg)
Completing his Mission-Oriented Protective Posture response level 4 (MOPP-4) suit, US Air Force (USAF) AIRMAN First Class (A1C) Chad R. Lynch, 31st Civil Engineer Squadron (CES), Rapid Runway Response (RRR) team member
![U.S. Air Force Airman 1st Class Robert Mears, 18th Logistics Readiness Squadron vehicle operator, drives a vehicle during the mission oriented protective posture level 4 ground transportation training course at Kadena Air U.S. Air Force Airman 1st Class Robert Mears, 18th Logistics Readiness Squadron vehicle operator, drives a vehicle during the mission oriented protective posture level 4 ground transportation training course at Kadena Air](https://c8.alamy.com/comp/R2TGDY/us-air-force-airman-1st-class-robert-mears-18th-logistics-readiness-squadron-vehicle-operator-drives-a-vehicle-during-the-mission-oriented-protective-posture-level-4-ground-transportation-training-course-at-kadena-air-base-japan-nov-8-2018-airmen-wear-their-overgarments-protective-mask-gloves-overboots-and-field-gear-during-mopp-level-4-R2TGDY.jpg)
U.S. Air Force Airman 1st Class Robert Mears, 18th Logistics Readiness Squadron vehicle operator, drives a vehicle during the mission oriented protective posture level 4 ground transportation training course at Kadena Air
![US Air Force (USAF) AIRMAN First Class (A1C) Tyvis Pollock assigned to the 8th Communications Squadron's Network Control Center, puts on his glove inserts to his Mission-Oriented Protective Posture response level 4 ( US Air Force (USAF) AIRMAN First Class (A1C) Tyvis Pollock assigned to the 8th Communications Squadron's Network Control Center, puts on his glove inserts to his Mission-Oriented Protective Posture response level 4 (](https://catalog.archives.gov/OpaAPI/media/6661512/content/arcmedia/stillpix/330-cfd/2006/DF-SD-06-07365.jpeg)
US Air Force (USAF) AIRMAN First Class (A1C) Tyvis Pollock assigned to the 8th Communications Squadron's Network Control Center, puts on his glove inserts to his Mission-Oriented Protective Posture response level 4 (
![File:2nd Lt. Noel Horton of the 48th Communications Squadron, 48th Fighter Wing RAF Lakenheath United Kingdom gets into MOPP 4 gear during a Chemical Warfare Training Class on Wednesday the 15th of File:2nd Lt. Noel Horton of the 48th Communications Squadron, 48th Fighter Wing RAF Lakenheath United Kingdom gets into MOPP 4 gear during a Chemical Warfare Training Class on Wednesday the 15th of](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/2nd_Lt._Noel_Horton_of_the_48th_Communications_Squadron%2C_48th_Fighter_Wing_RAF_Lakenheath_United_Kingdom_gets_into_MOPP_4_gear_during_a_Chemical_Warfare_Training_Class_on_Wednesday_the_15th_of_November_2006_061115-F-ZM185-003.jpg/1200px-thumbnail.jpg)