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A fog machine, fog generator, or smoke machine is a device that emits a dense vapor that appears similar to fog or smoke. This artificial fog is most commonly used in professional entertainment applications, but smaller, more affordable fog machines are becoming common for personal use. Fog machines can also be found in use in a variety of ...
Security smoke is a thermally generated white fog, aimed at inhibiting intruders from accessing items to steal, much used in the storage of high-value goods, and recommended by police and insurers. It consists of glycol or glycerine mixed with distilled water , which vaporises and then condenses in the air.
Anti-fog agents, also known as anti-fogging agents and treatments, are chemicals that prevent the condensation of water in the form of small droplets on a surface which resemble fog. They are one of many additives used in the production of plastics.
Theatrical smoke and fog, also known as special effect smoke, fog or haze, is a category of atmospheric effects used in the entertainment industry.The use of fogs can be found throughout motion picture and television productions, live theatre, concerts, at nightclubs and raves, amusement and theme parks and even in video arcades and similar venues.
The Federal Coal Mine Health and Safety Act establishing MESA (later MSHA), [30] the Occupational Safety and Health Act of 1970, establishing NIOSH, [31] as well as other regulations established around the time, reshuffled regulatory authority for respirators, and moved regulations from Part 14 to Part 11 by 1972, but nonetheless continued the ...
Authorities battling a series of large wildfires in the Los Angeles area have employed a bright red fire retardant to tamp the flames, leading to dramatic images of the material blanketing scores ...
The use of artificial light as the sole source of light or mixing artificial and daylight might cause ill-health effects, both physical and mental, such as eye strain, headaches, or fatigue. The standards address the types of light that negatively affect vision, angles of light in different environments, illumination standards per square meter ...
Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [ 1 ] to refer to smoky fog due to its opacity, and odor. [ 2 ]