Clean bench is a laminar flow work cabinet or alike enclosure that provides filtered air over the work surface to protect against contamination.
Clean benches have two possible airflow patterns :rear to front in horizontal flow models, or top to bottom in vertical flow models. In both models, Contamination air is expelled outside the area and made safe through HEPA air filtration to provide environmental and personal protection.
Flair ‘s clean bench is recommended for work with non-hazardous materials where clean, particle-free air is necessary to avoid contamination. The clean bench ensures that the work surface is constantly flooded with HEPA-filtered air in a laminar flow.
AC centrifugal fan or EC EBM motor, according to IEEE specification and requirements, low noise
3-step speed controller / step-less speed control panel, easy to control
High-efficiency particulate air (HEPA) filters meet the national and industrial standard
Exterior material SUS table,Easy to clean
FFU’s performance is tested & verified by third-party lab or research institute, quality guaranteed
Based on the ISO 14644–14 guidance, equipments are designed for cleanrooms
Horizontal flow air is then passed through the main chamber of the clean bench in a horizontal laminar (unidirectional) air stream and is exhausted through the front opening of the cabinet.
Vertical flow air is passed through the main chamber of the clean bench in a vertical laminar (unidirectional) air stream before being exhausted through the front opening of the clean bench.
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It is mainly used in factories, laboratories, food processing, aerospace, bioscience, etc. It can also be designed and manufactured according to customer requests.
Find answers to frequently asked questions about our products. Any other questions just feel free to contact us.
1. How does clean bench work?
The clean bench is a work area or work earea ensures that the work surface is constantly flooded with HEPA-filtered air in a laminar flow. Unlike a biological safety cabinet, the clean bench protects the work on the work surface, but not personnel or the surrounding environment from aerosols created on the work surface. The HEPA air filter can trap 99.999% of particles with a diameter greater than 0.3 microns.
The Vertical Laminar Flow benches are manufactured with rear wall perforations to reduce turbulence by removing a small amount of air at the rear of the cabinet.
The Horizontal Laminar flow benches do not directly impinge upon the work surface or encounter turbulence but rather is smoothly drawn across it.
2. What is the difference between clean bench and biosafety cabinet?
The clean bench ensures that the work surface is constantly flooded with HEPA-filtered air in a laminar flow. It is in a positive environment.
The clean bench protects the work on the work surface, but not personnel or the surrounding environment from aerosols created on the work surface.
The Clean bench do not provide any protection to the worker. They are designed to provide a sterile environment to protect the product. Air potentially contaminated with infectious agents may be blown towards the worker.
Biosafety cabinets protect the product as well as the user and the environment. They operate under negative air pressure , protecting the user from exposure to aerosolized infectious agents. The air sucked into the hood is sterilized by high efficiency particulate air (HEPA) filtration before being exhausted out, thereby protecting the environment.
Biosafety Cabinets are similar to the Laminar Air Flow cabinets. They too contain HEPA filters but there is one dissimilarity that Biosafety Cabinets offers complete protection to the users against harmful pathogens, since the contaminated air is filtered before it can come in contact with the users.
3. Clean bench vs Laminar flow hood
Many users don’t know the difference between clean bench and laminar flow hood, There are a lot of misconceptions about them:
Clean bench
The clean bench ensures that the work surface is constantly flooded with HEPA-filtered air in a laminar flow
Laminar flow hood
The laminar flow hood is designed to remove corrosive chemical gases and toxic fumes during chemical experiments. The discharge of harmful gases and the use of a laboratory equipment for cleaning and discharging during the experiment. Since the HEPA filter is not equipped, the laminar flow hood can’t effectively remove the microbial medium.
