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Steel army of two masks
Steel army of two masks









Given how interconnected the world is today, a pathogen capable of human-to-human transmission can spark an outbreak far from where it originated. IntroductionĮmerging and reemerging infections have emerged as a threat to human health in recent decades. This review will cover mask-wearing from the public health perspective, the technical details of commercial and home-made masks, and recent advances in mask engineering, disinfection, and materials and discuss the sustainability of mask-wearing and mask production into the future. At the same time, research has been accelerated towards improving the quality and performance of face masks, e.g., by introducing properties such as antimicrobial activity and superhydrophobicity. The ongoing COVID-19 pandemic has even resulted in a global shortage of face masks and the raw materials that go into them, driving individuals to self-produce masks from household items. Different types of masks give different levels of protection to the user. Routes of transmission differ, but the respiratory droplet or airborne route has the greatest potential to disrupt social intercourse, while being amenable to prevention by the humble face mask. Photographs of the soldiers taken and published by Japanese news website DDN Japan went viral in 2013.The increasing prevalence of infectious diseases in recent decades has posed a serious threat to public health. Ī military parade in 2011 in Taipei showcased soldiers of the Republic of China Armed Forces special forces wearing ballistic masks as part of their uniform. They were described as lighter and more compact versions of the face shields used by explosive ordnance disposal personnel. In 2012, it was reported that the United States Marine Corps was researching and testing ballistic face shields that could protect troops from 7.62x39mm rounds as well as from shrapnel. University of Adelaide neurologist Robert Vink claimed the study corroborated earlier testing on animals, which reached the same conclusions. Ī November 2010 study from the Massachusetts Institute of Technology led by associate professor Raul Radovitzky suggested that equipping combatants with ballistic face shields could reduce traumatic brain injuries from bomb blasts, deflecting the pressure wave of the explosion away from the wearer's head.

steel army of two masks steel army of two masks

Palmer also noted that the masks obscured a soldier's vision, were heavy, and didn't "breathe", meaning sweat wouldn't evaporate from the soldier's face, and would look unfriendly to the civilian population.

steel army of two masks

He particularly noted the masks would be useless against a 7.62×39mm bullet from a Kalashnikov rifle. Brian Palmer further reported they were only capable of protecting the wearer's face from relatively small shrapnel fragments, and from the commonly used shot in shotgun shell intended to be used against birds, or small game. In its October 2010 issue, Slate reported that while ballistic face masks were sometimes employed by law enforcement officers, they were not seen as worth using by combat soldiers. Due to weight restrictions, protection levels range only up to NIJ Level IIIA, which offers protection from calibers up to. Ballistic face masks are usually made of Kevlar or other bullet resistant materials and the inside of the mask may be padded for shock absorption, depending on the design. Ballistic face mask as part of the Mounted Soldier System.Ī ballistic face mask, also known as facial armor, is a type of personal armor designed to protect the wearer's face from ballistic threats.











Steel army of two masks