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Class III cabinets are leak-tight, totally enclosed but ventilated cabinets, where all air that either enters or leaves through the facility pass through a HEPA filter.
The cabinets are provided with rubber gloves that are attached to the system to be used during operations in the cabinet. This is why these cabinets are also termed ‘glove boxes’.
The cabinet even has a transfer chamber that facilitates the sterilization of materials before they leave the glove box.
Even though the gloves restrict the hand movement of the operator inside the cabinet, it prevents direct contact between the operator and the samples.
The exhaust air is treated with double HEPA filters or HEPA filters in combination with incineration.
These cabinets can be used for all four Biosafety levels (1, 2, 3, and 4). But these are the most important for the manipulation of biological materials in the Biosafety level 4.
These cabinets are mostly custom-built for specific laboratories with lab equipment built inside the chamber.
All of these structural and design features provide maximum protection to the operator, the environment, and the sample against the high-risk group 4 pathogenic organisms.
The Class III biological safety cabinet provides an absolute level of safety, which cannot be attained with Class I and Class II cabinets. All Class III cabinets are usually made of welded metal construction and are designed to be gas tight and work is performed through glove ports in the front of the cabinet. During routine operation, negative pressure relative to the ambient environment is maintained within the cabinet which provides an additional fail-safe mechanism in case physical containment is compromised.
On all Class III cabinets, exhaust air is HEPA-filtered and incinerated. Materials are transferred into the cabinet using a pass-through unit installed at the side of the work area.
Class III cabinets usually exhaust air back to the laboratory; however, air may also be exhausted via a dedicated ductwork system to the external environment. When a dedicated ductwork system is employed, they are also suitable for work employing toxic chemicals as an adjunct to microbiological processes.
Dual exhaust ULPA filters provides better protection than single-stage designs
User-friendly control system
Single piece, leak-tested Neoprene? gauntlets to guarantee maximum protection.
Integrated pass-through with interlocking doors permits materials transfer without risk of environmental contamination.
Angled cabinet front ensures a comfortable working posture.
Magnehelic gauge mounted on the rear of work zone for easy monitoring
Audible and visual alarms to notify user of unsafe condition
Isocide? powder coat that inhibits microbial growth
Quickly find the right fume hood and all the components needed to make a complete system.
Let Scout lead you to the right laboratory hood or sample prep equipment for your application.
一級生物安全柜保護(hù)操作人員和環(huán)境免受生物危害的暴露。它不能防止在機(jī)柜中處理的樣品接觸到可能存在于室內(nèi)空氣中的污染物。
二級生物安全柜同一級生物安全柜一樣，氣體也是從外部流入二級生物安全柜，通常稱為進(jìn)流。進(jìn)流能夠防止微生物操作時產(chǎn)生的氣溶膠從安全柜前面操作窗口逃逸到實驗室內(nèi)。
III級機(jī)柜是漏氣密封、完全封閉但通風(fēng)的機(jī)柜，所有進(jìn)入或離開設(shè)備的空氣都要通過高效空氣過濾器。
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