![]() ![]() The drinking system is also compatible with CamelBak hydration systems. The CM-7M nuclear gas mask is equipped with a drinking system that enables safe drinking in contaminated areas. The dual lens configuration provides superior depth perception when compared to a single panoramic faceplate, making it ideal for use with rifle iron sights or in combat. The lenses of the CM-7M warfare mask are specifically crafted to ensure compatibility with all kinds of optical devices while providing a sufficient field of vision. These military-grade gas masks are manufactured under the permanent supervision of a representative of the Czech Ministry of Defense and are trusted by military and police users in a wide variety of countries. This ensures compatibility with the widest range of filters readily available on the market today. The inhalation chambers on this army gas mask are fitted with the Rd 40 x 1/7” thread in accordance with the EN 148-1 (NATO) standard. ![]() The inner mask features comfortable hypoallergenic construction that reduces the content of carbon dioxide in the mask and regulates the flow of inhaled air to prevent fogging for more comfortable all-day use. This tactical gas mask is designed to withstand long-term use in any weather conditions. The material of the facepiece (bromobutyl rubber) on this NATO gas mask provides extraordinary protection against all known chemical warfare agents, along with biological, nuclear, radiological, and industrial chemical agents. A NATO-standard filter canister can be mounted on either (or both) side of the military mask to make it easier to aim a gun whether right- or left-handed. The CM-7M hazmat mask meets the EN 136 (Class III) and EN 148-1 standards and is available in three sizes, providing a perfect fit for practically any user. The CM-7M CBRN military gas mask was designed and developed in cooperation with Czech Army specialists and specifically developed for use with a wide array of optics for advanced tactical capability. 60 Paįunctional reliability - 30☌ up to +70☌ Resistance against penetration of NBC agents > 48 hours Technical specifications Average weight 500g Plastic components polyoximethylen, polyamide Inner mask, other rubber components natural rubber, non-irritating Gas masks are also reusable after decontamination.Facepiece bromobutyl rubber, non-irritating Gas masks can be useful when FFP3 masks are lacking or when operating in restricted military situations. The filter and the powered air-purifying respirator are also positioned at the back of the surgeon, away from the patient’s airways and from virus projection during the trachea incision. The filter in the device is comparable with an FFP3 filter and can be fully effective for hours without performance degradation. 2 By contrast, the gas mask, originally designed to protect soldiers against biological and chemical attacks, provides full protection. 1 An additional concern is the potential risk of progressive degradation and increasing porosity, which could explain the lower efficiency of FFP2 or FFP3 masks compared with powered air-purifying respirators. However, their efficacy for SARS-CoV-2 protection has not been explored, and the virus has a smaller calibre (0.1–0.15 µm). FFP2 or FFP3 masks can provide proper protection, as these masks have an efficiency of 95%–99% when tested with 0.30 µm particles. The French Army Biomedical Research Centre provided our hospital with military masks equipped with P3 filter cartridges and an integrated ventilation unit that would allow safe performance of this procedure when faced with a high risk of virus transmission ( Figure 1). Tracheotomy is frequently indicated for patients with COVID-19 suffering from severe acute respiratory syndrome (SARS). Awareness of this device and the ability to perform surgery with this procedure could be crucial during pandemics. ![]()
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