PFB Enterprises
PFB or pfb may refer to: * Perfluorobutane, a fluorocarbon gas * Printer Font Binary, a binary PostScript font file * Pseudofolliculitis barbae, a medical term for persistent inflammation caused by shaving * Lauro Kurtz Airport Lauro Kurtz Airport is the airport serving Passo Fundo, Brazil. It is managed by contract by Infraero. History The airport was renovated in 2007. In January 2021 the airport was closed for the renovation of the runway and construction of a n ...

Perfluorobutane
Perfluorobutane (PFB) is an inert, high-density colorless gas. It is a simple fluorocarbon with a ''n''-butane skeleton and all the hydrogen atoms replaced with fluorine atoms. Uses Perfluorobutane can replace Halon 1301 in fire extinguishers, as well as the gas component for newer generation microbubble ultrasound contrast agents. Sonazoid is one such microbubble formulation developed by Amersham Health that uses perfluorobutane for the gas core. Inhaling perfluorobutane makes one's voice deeper. Environmental impacts If perfluorobutane is released to the environment, it will not be broken down in air. It is not expected to be broken down by sunlight. It will move into air from soil and water surfaces. If it is exposed to conditions of extreme heat from misuse, equipment failure, etc., toxic decomposition products including hydrogen fluoride can be produced. Perfluorobutane has an estimated lifetime greater than 2600 years. Perfluorobutane has a high global warming potentia ...
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Printer Font Binary
PostScript fonts are font files encoded in outline font specifications developed by Adobe Systems for professional digital typesetting. This system uses PostScript file format to encode font information. "PostScript fonts" may also separately be used to refer to a basic set of fonts included as standards in the PostScript system, such as Times New Roman, Helvetica, and Avant Garde. History Type 1 and Type 3 fonts, though introduced by Adobe in 1984 as part of the PostScript page description language, did not see widespread use until March 1985 when the first laser printer to use the PostScript language, the Apple LaserWriter, was introduced. Even then, in 1985, the outline fonts were resident only in the printer, and the screen used bitmap fonts as substitutes for outline fonts. Although originally part of PostScript, Type 1 fonts used a simplified set of drawing operations compared to ordinary PostScript (programmatic elements such as loops and variables were removed, much ...
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Pseudofolliculitis Barbae
Pseudofolliculitis barbae (PFB) is a persistent irritation caused by shaving. It was first described in 1956. Signs and symptoms Related conditions Razor burn is a less serious condition caused by shaving, characterized by mild to moderate redness and irritation on the surface of the skin. Unlike PFB, it is usually transient and there is no infection involved. There is also a condition called ''folliculitis barbae''. The difference between the two is the cause of the inflammation in the hair follicles. Where folliculitis barbae is caused by viral or bacterial infections, pseudofolliculitis is created by irritation from shaving and ingrown hairs. ''Pseudofolliculitis nuchae'', a related condition, occurs on the back of the neck, often along the posterior hairline, when curved hairs are cut short and allowed to grow back into the skin. Left untreated, this can develop into acne keloidalis nuchae, a condition in which hard, dark keloid-like bumps form on the neck. Both occur frequen ...
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