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In addition, transparency is often an "extra" for a graphics format, and some graphics programs will ignore the transparency. Animated PNG ( APNG ) 8-bit transparency Raster file formats that support transparency include GIF , PNG , BMP , TIFF , TGA and JPEG 2000 , through either a transparent color or an alpha channel .
This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in the United States Department of Health and Human Services, taken or made as part of an employee's official duties.
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English: Mask laws in force around the world as of Dec 19. Red: All the country require mask-wearing in public spaces Orange: Some regions require mask-wearing in public spaces Blue: Country recommends but doesn't require mask-wearing in public spaces Green: Country doesn't recommend wearing a mask
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The mask was designed to incorporate state-of-the-art technology to protect soldiers from current and anticipated threats from all types of weapons of mass destruction. It is an above-the-neck, chemical - biological (CB) respirator that protects against battlefield concentrations of CB agents, toxins , toxic industrial materials, and ...
A cloth face mask is a mask made of common textiles, usually cotton, worn over the mouth and nose.When more effective masks are not available, and when physical distancing is impossible, cloth face masks are recommended by public health agencies for disease "source control" in epidemic situations to protect others from virus laden droplets in infected mask wearers' breath, coughs, and sneezes.
Another common subject of African masks is a woman's face, usually based on a specific culture's ideal of feminine beauty. Female masks of the Punu people of Gabon, for example, have long curved eyelashes, almond-shaped eyes, thin chin, and traditional ornaments on their cheeks, as all these are considered good-looking traits. [17]