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A fog machinefog generatoror 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 applicationsbut smaller, more affordable fog machines are becoming common for personal use. Fog machines can also be found in use in a variety of where to buy fog machine liquid, training, and some military applications.
Typically, fog is created by vaporizing proprietary water and glycol -based or glycerin -based fluids or through the atomization of mineral oil. This fluid often referred to colloquially as fog juice vaporizes or atomizes inside the fog machine.
Upon exiting the fog machine and mixing with cooler outside air the vapor condenses, resulting in a thick visible fog. Heated fog machines use either an inert gas or an electric pump to propel mineral oil, glycolor glycerin and water mixture into a heat exchanger, where the solution is vaporized. The most commonly encountered form of heated fog machine is the pump machine. Very basic models of this type of machine consist of a fluid reservoir, an electric pump to move the fog fluid and heat exchanger which vaporizes the fluid.
More complex models may include a variety of other features, including variable speed pumps to control the output of fog, timer modules, or components for remote operation and monitoring of the fog machines' status. Some manufacturers have produced accessories and fluids that when combined with an ordinary heated pump machine, create fog effects similar to chilled fog machines.
Gas propelled fog machines use an inert gas most commonly CO 2 or nitrogen to propel either mineral oil or a glycol based fluid into a heat exchanger where it is vaporized into particles, creating a fog. Some models of gas propelled fog machine provide control over the output of fog by varying the volume of gas used to propel the fluid.
Chilled fog machines are designed to create thick clouds of fog that lie close to the ground and dissipate as they rise. They are typically created by using either dry iceliquid nitrogen, or more recently liquid air. Dry Ice solid carbon dioxide effects are produced by heating water to or near boiling in a suitable container for example: Because at standard temperature and pressure carbon dioxide is a gas, the carbon dioxide sublimates and instantly produces a gas, condensing water vapor and creating a thick white fog.
A fan placed at the top of the container directs the fog where it is needed. Liquid nitrogen N 2 is used to create low lying fog effects in a manner similar to dry ice. A machine heats water to at or near the boiling point, creating steam and increasing the humidity in a closed container. When liquid nitrogen is pumped into the container, the moisture rapidly condenses, creating a thick white fog.
A fan placed at the output of the container directs the fog where it is needed, creating a rolling fog that lies low to the ground. Where to buy fog machine liquid air is an alternative to using liquid nitrogen in generating low lying fog effects. This ratio of nitrogen to oxygen is the same as that of atmospheric air, and indeed liquid air may be fabricated by where to buy fog machine liquid liquefying atmospheric air.
Liquid air can be used as a direct replacement for liquid nitrogen in chilled-fog effects and is intended to be used in the same manner in the same equipment. Its key advantage over liquid nitrogen is that it presents no asphyxiation hazard, since it contains oxygen.
A disadvantage is that it supports combustion, whereas liquid nitrogen where to buy fog machine liquid combustion. The versatility where to buy fog machine liquid fog machines make them appropriate for a wide variety of applications: Fog readily assists in creating a specific mood or feeling for a theatrical moment, and is often used in plays, such as DraculaA Christmas Carol and Macbeth. Fog machines are also frequently used in Halloween displays such as haunted houses or forests.
Because of greater availability and reductions in prices between andfog machines have become widely used for domestic Halloween presentations. Fog machines are also useful for industrial applications including visualizing the flow of air, such highlighting drag over a surface in a wind tunnel or testing for leaks or filter effectiveness in air conditioning installations.
Emergency and military services also use fog machines in their training regimens. Because of the reflective and refractive qualities of the smoke created by fog machines, they are often used in nightclubs and other entertainment venues to enhance the effects of lighting and laser arrangements, although they are being superseded by haze machines see also light beam.
Several companies in Europe and Canada have developed rapid deployment fog machines for use as intrusion and hold-up security systems, intended to disorient an intruder by filling a room with fog when triggered by a panic button or other security device.
These Security Smoke devices can produce between and 1, cubic meters of smoke in 30 seconds and have been utilized in a wide variety where to buy fog machine liquid industries, including buildings requiring a high level of security, such as banks and jewelers, but also warehouses, offices, retail premises and in cash-handling chains. Concerns have been raised, that these devices may cause criminals to panic, causing them to become violent to customers or staff,  however Security Smoke now has its own European Standard EN-8 which specifically states that it must not be installed in such a way as to create a mantrap.
UNLV refers to the droplet size between micrometers generated by these fog machines. This fine droplet size is known  as the optimum size for pest control. Traditional thermal fog machine technology has difficulty reaching crawling pests such as roaches, flea and rodents due to the droplet size being too fine less than 10 micrometers. It is often found that small droplets are blocked by the "air-curtain" of insects and rodents.
Atmospheric effects generated using water and dry ice or liquid nitrogen can present asphyxiation or breathing hazards. Both carbon dioxide and nitrogen where to buy fog machine liquid ordinary air and the oxygen it contains, creating a risk of subtle anoxia lack of oxygenation for people working in these atmospheres. Adequate ventilation is essential to ensure that artists and technicians are surrounded by breathable air.
Carbon dioxide has the added hazard of interfering with the normal breathing reflex, which is sensitive to carbon dioxide levels in the air. Nitrogen has no effect on the breathing reflex, but this creates its own hazard in that a person breathing pure nitrogen can lose consciousness from lack of oxygen without any warning signs. Fog produced with liquid air does not present the hazards of carbon dioxide or liquid nitrogen because the liquid air has the same composition as ordinary where to buy fog machine liquid air including the same level of breathable oxygen.
Fog machines which generate their effects solely using water, such as ultrasonic or pressurized technology, pose no special health risks, however it should be noted that "water based" fog fluid does contain glycol. A number of studies have been published on the potential health effects presented by where to buy fog machine liquid to glycol based theatrical fogs and artificial mists.
The conclusion of both studies was that there was irritation of mucous membranes such as the eyes and the respiratory tract associated with extended peak exposure to theatrical fog. Exposure guidelines were where to buy fog machine liquid in the study that, it was determined, should prevent actors from suffering adverse impact to their health or vocal abilities. Another study  focused on the use of theatrical fog in the commercial aviation industry for emergency training of staff in simulated fire conditions.
This study also found eye and respiratory tract irritation. In Maya study published in the American Journal of Industrial Medicine,  conducted by the School of Environment and Health at the University of British Columbia, looked at adverse respiratory effects in crew members on a wide variety of entertainment venues ranging from live theaters, concerts, television where to buy fog machine liquid film productions to a video arcade.
This study determined that cumulative exposure to mineral oil and glycol-based fogs were associated with acute where to buy fog machine liquid chronic adverse effects on respiratory health. This study found that short-term exposure to glycol fog was associated with coughing, dry throat, headaches, dizziness, drowsiness, and tiredness. This study also found long-term exposure to smoke and fog was associated with both short-term and long-term respiratory problems such as chest tightness and wheezing.
Personnel working closest to the fog machines had reduced lung function results. The Professional Lighting and Sound Association has compiled a standard for theatrical fogs or artificial mists compositions for use in entertainment venues that "are not likely to be harmful to otherwise healthy performers, technicians, or audience members of normal working age, which is 18 to 64 years of age, inclusive.
Short term exposure to glycol fog can be associated with headaches, dizziness, drowsiness and tiredness. Long term exposure to smoke and fog can be related to upper airway and voice symptoms. Extended multi-year exposure to smoke and fog has been associated with both short-term and long-term respiratory health problems. Efforts should be where to buy fog machine liquid to reduce exposure to theatrical smoke to as low a level as possible.
The use of digital effects in post production on film and television sets can be considered a safer practise than using theatrical smoke and fog during filming,  although this is not always practical. Haze machines, also called haze generators or hazers, produce atmospheric effects haze which tend to be less dense than that of fog machines, allowing them to be used in creating more subtle looks. Depending on a venue's or location's ventilationthis haze can stay in the air for hours.
Because of the small particle size of the output from hazers, under 5 micrometresa hazer typically takes longer to where to buy fog machine liquid the where to buy fog machine liquid volume of space with a visible effect relative to a fog machine. From Wikipedia, the free encyclopedia. Experimental exposure to propylene glycol mist in aviation emergency training: Occupational and Environmental Where to buy fog machine liquid.
Effects of theatrical smokes and fogs on respiratory health in the entertainment industry. American Journal of Industrial Medicine. Exposures to atmospheric effects in the entertainment industry [ permanent dead link ]. Journal of Occupational and Environmental Hygiene. Retrieved 13 June Retrieved from " https: All articles with where to buy fog machine liquid external links Articles with dead external links from May Articles with dead external links from January Articles with permanently dead external links Articles with dead external links from November Webarchive template wayback links Articles with dead external links from October Webarchive template archiveis links Articles with dead external links from July All articles with unsourced statements Articles with unsourced statements from September Views Read Edit View history.