Laminar flow cabinet

Laminar flow cabinet

Uses	Particulate removal
Related items	Fume hood
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A laminar flow cabinet or laminar flow closet or tissue culture hood is a carefully enclosed bench designed to prevent contamination of semiconductor wafers, biological samples, or any particle sensitive device. Particulates, alternatively referred to as particulate matter (PM or fine particles, are tiny particles of solid or liquid suspended in a gas A fume hood or fume cupboard is a large piece of Scientific equipment common to Chemistry laboratories designed to limit a person's exposure to hazardous Air is drawn through a HEPA filter and blown in a very smooth, laminar flow towards the user. A high efficiency Particulate air or HEPA (ˈhɛpə filter is a type of high-efficiency Air filter. Laminar flow, sometimes known as streamline flow occurs when a fluid flows in parallel layers with no disruption between the layers The cabinet is usually made of stainless steel with no gaps or joints where spores might collect. In Metallurgy, stainless steel is defined as a Steel Alloy with a minimum of 11

Such hoods exist in both horizontal and vertical configurations, and there are many different types of cabinets with a variety of airflow patterns and acceptable uses. NSF49 is the commonly accepted regulatory standard for these cabinets.

Laminar flow cabinets may have a UV-C germicidal lamp to sterilize the shell and contents when not in use. Ultraviolet ( UV) light is Electromagnetic radiation with a Wavelength shorter than that of Visible light, but longer than X-rays A germicidal lamp is a special type of lamp which produces Ultraviolet light (UVC (It is important to switch this light off during use, as it will quickly give any exposed skin sunburn and may cause cataracts. A sunburn is a burn to living tissue such as Skin produced by overexposure to Ultraviolet (UV radiation commonly from the Sun 's rays A cataract is a clouding that develops in the crystalline lens of the Eye or in its envelope varying in degree from slight to complete opacity )

See also