Ductless Fume Hood

Ductless Fume Hood provide protection to both laboratory personnel and the environment from toxic fumes. Ductless fume hoods are considered as independent systems that do not require connection to the extraction systems. Unlike conventional fume hoods, these hoods filter out chemical fumes and recycle air directly back to the laboratory, providing energy savings, personnel and environmental protection, convenience as you do not have to deal with complicated ducting systems, and mobility, since ductless hoods are independent systems which do not require connection to extraction systems.

With a Ductless Fume Hood it is essential that the filter medium be able to remove the particular hazardous or noxious material being used. As different filters are required for different materials, recirculating fume hoods should only be used when the hazard is well known and does not change.

Standards Compiled:

• ASHRAE 110
• EN 14175-3
• AFNOR NF X 15-203
• BS 7989
• BS 7258

Special Features:

• Certified to ASHRAE 110, EN 14175-3, AFNOR NF X 15-203, BS 7989, BS 7258
• Robust hood construction for a long lasting unit.
• Large working area provides user comfort.
• Generous carbon filter weight to ensure uniformed filtration.
• Elegant and smooth sliding sash window.
• Microprocessor control system with audible and visual alarms for unsafe conditions.
• Front service panel opens up easily for maintenance functions
• VOC sensor to monitor chemical concentration within the cabinet work zone.(optional).
• Electrical Outlets: Direct mounted single electrical outlet.(Available in all international socket outlet types. Specify when ordering.)
• Centrifugal Fan: Permanently lubricated fans are energy efficient with external rotor motor design that reduces operating costs. Extremely low noise and low vibration level.
• Arm Ports: allows easy access to work zone without risking exposure from chemical fumes.
• Work Top: Spill-retaining work top designed with a recessed central area contains accidental liquid spills.

Operating Principle:

Ductless enclosure is a safety device used to protect laboratory workers when handling chemicals that pose an inhalation risk.

These enclosures are equipped with filtration technology that is specific to the type of chemicals handled. These filters capture toxic molecules and particles

evaporated in the hood and make it possible to:

• Protect users in an effective manner
• Reduce the carbon footprint by not releasing any toxic emissions into the atmosphere
• Reduce operating costs due to their very low energy consumption
• Eliminate all set-up costs related to the installation of a ducted airflow system.

• Air intake through the openings
  Air from the laboratory enters the hood through ergonomic openings. The air face velocity creates a dynamic barrier between the user and the chemicals being handled.
• Filtration of particles and molecules
  The device ventilation system draws the particles and any molecules that have evaporated in the hood toward the filtration system. The level of containment provided by the hood prevents any pollutants from being released into the laboratory.
• Clean air into the laboratory
  The filtration technology customized to the application traps the molecules that have evaporated within the enclosure. The discharged air is free from all pollutants.
• Purification of the ambient air
  The continuous recirculation of the filtered air helps to purify the ambient air of the laboratory.