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A surgical mask, also known by other names such as a medical face mask or procedure mask, is a personal protective equipment used by healthcare professionals that serves as a mechanical barrier that interferes with direct airflow in and out of respiratory orifices (i.e. nose and mouth).
Surgical masks may be labeled as surgical, isolation, dental, or medical procedure masks. The material surgical masks are made from is much poorer at filtering very small particles (in the range of a tenth of a micrometer to a micrometer across) than that of filtering respirators (for example N95, FFP2) and the fit is much poorer. [28]
Timeline CDC poster recommending the use of non-medical face masks to slow transmission of COVID-19. 2020 Early recommendations. Initially, the U.S. government did not recommend the use of face masks by the general public outside of medical settings to protect themselves from COVID-19, as to prevent shortages of medical-grade personal protective equipment (PPE) for doctors treating COVID-19 ...
v. t. e. Personal protective equipment ( PPE) is protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury or infection. The hazards addressed by protective equipment include physical, electrical, heat, chemical, biohazards, and airborne particulate matter.
Take the common disposable surgical mask, for example, which, explains a 2021 study out of the University of Denmark, is made of three layers — an outer layer of nonabsorbent material, such as ...
File:Understanding the difference between surgical masks and N95 respirators.pdf. Size of this JPG preview of this PDF file: 388 × 600 pixels. Other resolutions: 155 × 240 pixels | 310 × 480 pixels | 497 × 768 pixels | 662 × 1,024 pixels | 1,650 × 2,550 pixels. This is a file from the Wikimedia Commons. Information from its description ...