Fume hoods designed to ensure superior protection from toxic chemicals and hazardous agent exposure across various activities. They ensure optimal containment by making use of horizontal and vertical airflow across the work station.
Fume hoods are enclosures used for proper containment of work stations where volatile substances are handled. Types of Fumehoods are – Ducted and recirculation (ductless). Both categories works under the same principle, the system draws in air through the open front area and is expelled outside the building or will be filtered to make it safe and feed back into the room. Major functionalities of fume exhaust hood include protection of users from toxic gases, act as bio safety cabinets and protect the product and environmental protection.
There are different sized fume hoods available in the market depending on its applicability. An environment where exceptionally hazardous materials are handled, a glove box compartment is best suited to help isolate the user from the environment thus ensuring safety. A negative air pressure is maintained in the enclosure to avoid even a minor leakage from the chamber.
Most of the fume hoods are equipped with a control panel which helps monitor functions like, issuing a warning incase of low air flow, warning incase of any large opening in front, controlling the exhaust fan and internal lights. The controls can also be customized to best suit the requirements.
Ducted fume hoods
Ducted fume hoods are generally used in industrial applications. Pros of ducted fume hood are: Workspace will be free of fumes, Lower maintenance charges, and ducted fume hoods being a part of ventilation system has its extraction fan at a certain distance from the operator making it have a quiet operation. With the many pros of the system, there are a few cons too which can be summarized as: Additional ducts need to be maintained to install the system in place; the fumes from the workspace enter the ventilation and are released into the atmosphere without having treated.
Ductless fume hoods
Recirculating / Ductless fume hoods are mainly employed in areas of education or laboratories, which generally will have fans mounted either on top or bottom of the unit. Air is drawn from the front opening, passed through a filter and the fan which in turn will reach the workplace. These systems should possess the best of filter system which ensures that no particles of the hazardous material inside the chambers reach outside and is filtered properly before being recirculated into the chamber. A few of the pros of the system can be summarized as follows: Little or no ductwork is required, Temperature controlled environment in the workspace will not be disturbed, and most importantly contaminated air from the workplace will not be released into the atmosphere. A few of the cons of the system can be described as: maintenance of the filters must be conducted thoroughly and periodically, risk of chemical exposure is higher on comparison with the ducted counterpart, on contrary to the ducted system, exhaust fan is near the operator which might result in a not so quiet work space.
Maintenance of the fume hoods is an integral part of ensuring its efficiency. The system needs to be inspected daily for any visible damage or blockage. Periodic inspection on the smoke filters and internal structures need to be conducted. Annual maintenance of the entire system and its core areas has to be performed in detail.
Fume hoods are enclosures used for proper containment of work stations where volatile substances are handled. Types of Fumehoods are – Ducted and recirculation (ductless). Both categories works under the same principle, the system draws in air through the open front area and is expelled outside the building or will be filtered to make it safe and feed back into the room. Major functionalities of fume exhaust hood include protection of users from toxic gases, act as bio safety cabinets and protect the product and environmental protection.
There are different sized fume hoods available in the market depending on its applicability. An environment where exceptionally hazardous materials are handled, a glove box compartment is best suited to help isolate the user from the environment thus ensuring safety. A negative air pressure is maintained in the enclosure to avoid even a minor leakage from the chamber.
Most of the fume hoods are equipped with a control panel which helps monitor functions like, issuing a warning incase of low air flow, warning incase of any large opening in front, controlling the exhaust fan and internal lights. The controls can also be customized to best suit the requirements.
Ducted fume hoods
Ducted fume hoods are generally used in industrial applications. Pros of ducted fume hood are: Workspace will be free of fumes, Lower maintenance charges, and ducted fume hoods being a part of ventilation system has its extraction fan at a certain distance from the operator making it have a quiet operation. With the many pros of the system, there are a few cons too which can be summarized as: Additional ducts need to be maintained to install the system in place; the fumes from the workspace enter the ventilation and are released into the atmosphere without having treated.
Ductless fume hoods
Recirculating / Ductless fume hoods are mainly employed in areas of education or laboratories, which generally will have fans mounted either on top or bottom of the unit. Air is drawn from the front opening, passed through a filter and the fan which in turn will reach the workplace. These systems should possess the best of filter system which ensures that no particles of the hazardous material inside the chambers reach outside and is filtered properly before being recirculated into the chamber. A few of the pros of the system can be summarized as follows: Little or no ductwork is required, Temperature controlled environment in the workspace will not be disturbed, and most importantly contaminated air from the workplace will not be released into the atmosphere. A few of the cons of the system can be described as: maintenance of the filters must be conducted thoroughly and periodically, risk of chemical exposure is higher on comparison with the ducted counterpart, on contrary to the ducted system, exhaust fan is near the operator which might result in a not so quiet work space.
Maintenance of the fume hoods is an integral part of ensuring its efficiency. The system needs to be inspected daily for any visible damage or blockage. Periodic inspection on the smoke filters and internal structures need to be conducted. Annual maintenance of the entire system and its core areas has to be performed in detail.
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