Reusable body and accessories, made from high-temperature resistant skin-safe materials provide better fit and comfortable user experience. (Sterilizable: autoclave 134°C, ß-/y-radiation 2x35 kGy, EtO) Easy to breath (1.7mbar at 60l/min) exchangeable virus filters stop the ultrafine particles, virions down to 0.02-micron size, with 99,98% efficiency for 24h active use in viral contaminated environment, like in Hospitals. Viruses like the SARS-CoV-2 have an average size of 0.06-0.14 microns.
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