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The Flammability Of Surgical Masks

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The Flammability Of Surgical Masks

Author: Date :2020-06-19 Views: order
      The focus of this article is on the flammability of surgical masks and surgical N95 respirators.  flammability is just one of many device characteristics, which are used in evaluating the performance of these devices for FDA clearance. Because NIOSH approves N95 filtering facepiece respirators (FFRs) with no evaluation for and has not traditionally evaluated flammability. This study sought to understand the flammability of NIOSH-approved FFRs as well as NIOSH’s capability to undertake flammability testing.
     The Flammability Of Surgical Masks(图1)
     While surgical fires occur infrequently in healthcare workplaces, serious patient or healthcare professional injuries may result when they happen. The Food and Drug Administration (FDA) describes many potential sources for fire in the operating room including surgical lasers, electrosurgical units, endoscopic fiber optic light sources, and electro-medical devices  . Surgical fire has been identified as one of the top ten technology hazards in operating rooms . The Emergency Care Research Institute (ECRI) estimates the occurrence of about 550 to 650 surgical fires every year in the surgical environment. Healthcare workers wearing PPE including surgical gowns, respirators, and surgical head covers in an operating room (OR) may be exposed to surgical fires; it is important that these devices not contribute to further injuries or fatalities. 
    Three major components of fire combustion process include, an oxidizer, an ignition source and a fuel, also described as a fire triangle, come together in the proper proportions at the right conditions to produce fire ;. The commonly used ignition sources are electrosurgical units, lasers, electrocautery units and fiber optic sources. Oxidizers such as oxygen and nitrous oxide are used for surgical and anesthetic procedures. The major fuels involved in surgical procedures are endotracheal and tracheostomy tubes, surgical drapes, prepping agents, and gauze sponges.
    In surgical settings, many types of personal protective equipment (PPE) are worn on the head and face of workers to protect both them and the patients against the transfer of microorganisms, body fluids, particulate material, and surgical fires. Some types of the PPE are cleared by the FDA as class II medical devices and/or approved by National Institute for Occupational Safety and Health (NIOSH) for respiratory protection and powered air-purifying respirators (PAPRs)). SMs are loose-fitting devices used by healthcare personnel as a barrier for both the patient and the healthcare personnel from body fluid splashes and particulate material (FDA 2004). 


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