Vertical & Horizontal Laminar Air Flow Cabinets - Laminar Air Flow Bench

Many microbiological and cell culture laboratories require highly sterile working environment for performing research activities and laminar air flow cabinets are the best solution for them. A laminar air flow (LAF) cabinet, also known as a laminar Hood or tissue culture hood, is an enclosed cabinet designed for preventing contamination of biological samples, semi-conductor wafers and sensitive materials. In other words, the laminar flow cabinet provides an excellent clean air environment, which is free from contaminant for performing a number of laboratory requirements. These cabinets are used for general laboratory work and in electronic and pharmaceutical industries extensively. Clean benches are other names of laminar air flow cabinets as the working air environment remains clear due to the high-end filtration process. Industries demand both horizontal and vertical laminar air flow cabinets for different purposes.

A laminar air flow cabinet maintains a unidirectional flow of HEPA-filtered air over the work area and protects the working environment from dust and other air-born particulates. The flow can be horizontal (parallel to the work surface) or vertical (from top to the work surface). Both the air flow types have their own significance in research. The question, where to use horizontal air flow cabinet or vertical air flow cabinet, this choice solely depends upon the requirements of applications.

Working Principle & Parts of Laminar Air Flow

Laminar air flow or laminar Hood consists of stainless Steel Cabinet, Filter pad or pre-filter, HEPA Filter, Fan or blower, UV Lamp, Working stations Fluorescent lamp etc. These important parts perform individual functions during its operation. The main function of laminar air flow is to remove all airborne contaminations for maintaining sterile conditions. This process takes place in the following manner:

• 1. The cabinet uses inwards flow of air passed through one or more HEPA filters for creating sterile environment.
• 2. The air taken inside via a filtration system is exhausted across the work surface.
• 3. Primarily, air is passed through the filter pad that ensures the streamlined flow of air into the cabinet.
• 4. After that, the blower directs the air towards HEPA filters.
• 5. The HEPA filters capture the fungi, bacteria or other particulate materials and make air circulating inside the cabinet particulate-free.
• 6. Some effluent air passes at the bottom rear end of the cabinet via perforation while most of the air passes over the working bench (it is the area encompassing burner, loops and culture plates inside the cabinet where all processes take place) towards the face of the operator.

Vertical Vs Horizontal Laminar Flow

As mentioned above, in a horizontal air flow cabinet, filtered air blows across the work zone in horizontal direction; this constant flow of air provides material and product protection. Whereas, in a vertical laminar air flow cabinet, filtered air blows on the work zone and leaves through the holes in the base. As compared to horizontal type, vertical flow cabinet can provide greater operator protection. Furthermore, it is user preference that decides which type of laminar air flow cabinet should use.

#1 Laminar Air Flow Cabinets Manufacturers in India

We are ISO & CE Certified laminar air flow Manufacturers in India, suppliers in Delhi NCR, India & Overseas. We have more than 35 Years of manufacturing of laminar Hood or tissue culture hood in India. These LAF cabinets are available in 5 standard sizes that can be further customized to meet unique requirements of our customers. These cabinets are well suited for cell culture and microbiological applications that require class 100 air quality.

Our laminar air flow cabinets are modern in design and features certified quality construction; with options and accessories these prove to be most efficient laminar air flow cabinets available on the Indian market today. Our in-house manufacturing and fabrication facilities provide benefit of any kind of customization that our customers may need. In addition to cover all Indian market, these laminar air flow cabinets are also exported worldwide. To know price list and other important details, please email us your query and our sales team will coordinate with you till you get 100% satisfaction.

Precautions to follow while operating laminar air flow

• 1. Before and after the operation, the cabinet needs to sterilize with UV light.
• 2. It is mandatory to switch off the UV light while performing any work.
• 3. The airflow and the UV light need not use at the same time.
• 4. The operator must wear long gloves and lab coats while operating the laminar air flow cabinet.
• 5. After completion of the work, the cabinet, glass shield and other components need to sterilize carefully.

Features:

HEPA filtration unit provides Class 100 air quality	Meet US Federal Standard 209 B (BS 5295)
Optional UV lamp to sterilize work zone	Stainless steel work table
Low noise level	Made from branded parts (blower etc.)
High airflow capacity	Easy to change filters

Standard Dimensions

Model	BST/VLAF-22	BST/VLAF-32	BST/VLAF-42	BST/VLAF-62	BST/VLAF-82
Working Size	2’x2’x2’	3’x2’x2’	4’x2’x2’	6’x2’x2’	8’x2’x2’
Size of HEPA Filter	2’x2’x6”	3’x2’x6”	4’x2’x6”	3’x2’x6”	4’x2’x6”
No. of HEPA Filter	1	1	1	2	2

Model	BST/HLAF-22	BST/HLAF-32	BST/HLAF-42	BST/HLAF-62	BST/HLAF-82
Working Size	2’x2’x2’	3’x2’x2’	4’x2’x2’	6’x2’x2’	8’x2’x2’
Size of HEPA Filter	2’x2’x6”	3’x2’x6”	4’x2’x6”	3’x2’x6”	4’x2’x6”
No. of HEPA Filter	1	1	1	2	2

Specifications:

Cleanliness	Class 100
Velocity	90 FPM ±20%
Hepa Filter	99.999 % efficiency for particles >0.3 μm
Pre-Filter	85 %efficiency for particles >0.5 μm (Washable)
Particle Count	Better than US Fed Std 209B Class10 and VDI 2083 Class 3
Cabinet	Laminated High Quality Wooden Board /PCRC Sheet Powder Coated/Stainless Steel SS 304 (optional 316 grade)
Work Table	304 Stainless Steel (optional 316 grade)
Airflow Speed	Control Speed Controller (Three Step Speed Controller)
Blower	High efficient centrifugal type with lifetime lubricated bearings
Light	High intensity, low wattage >800 lux
Noise Level	<55 dBA
Standard Accessories	Air/gas cock and mains power socket (16A)
Power Supply	220-230 V,50 Hz.
Optional Accessories	- Microprocessor LCD Controller - Digital display for air flow rate - Transparent Front Door - Gauges Pressure (Statics Pressure Mano-Mater) - Magnahelic Gauge (for filter pressure) - U. V. Germicidal Tube in work area - Electronic Filter choke alarm - Spare HEPA Filters - Auto switch on/off for U.V. Germicidal tube & fluorescent light - Hour Meter for UV light

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