Fume Hoods

A laboratory fume hood draws air away from the user and carries harmful fumes, vapours and dust out of the work area. CSI Labshop supplies ducted and ductless fume hoods to chemistry, food, environmental, university and industrial laboratories across Malaysia, from compact benchtop units to large walk-in hoods.

Every laboratory is different, so we help you choose the right hood for the chemicals you use, your room and your exhaust options, and then send a quotation.

Types of fume hood

Ducted fume hoods connect to an exhaust duct and send fumes outside the building. They suit most chemistry work, including strong acids, solvents and unknown mixtures. See the BIOBASE ducted fume hood, the BIOBASE FH series and the ESCO Frontier laboratory fume hoods.
Ductless (filtered) fume hoods clean the air through carbon filters and return it to the room, so no ducting is needed. They suit routine work with known, low-volume chemicals and labs where ducting is difficult. See the BIOBASE ductless fume hood and the ESCO Ascent ductless fume hood.
Acid-resistant PP fume hoods are built from polypropylene for strong acids and alkalis that would corrode steel. See the BIOBASE FH(P) series.
Walk-in fume hoods are floor-standing and tall enough to hold large equipment, drums or rigs. See the BIOBASE FH(W) series.
Economy and feature models range from the BIOBASE FH(E), with an adjustable fan and manual sash, to the FH(A) and FH(X), with a motorised sash, UV lamp and filter alarm.

How to choose a fume hood

Chemicals: list the chemicals and amounts you handle. Strong acids, perchloric acid and unknown mixtures need a ducted hood, and sometimes a special lining.
Width: common widths are 1.0, 1.2, 1.5 and 1.8 m. Allow space for your equipment plus room to work.
Exhaust: check whether your building can take a duct to the outside. If not, a ductless hood may be the answer.
Standards: look for hoods tested to EN 14175 or ASHRAE 110, which measure how well the hood keeps fumes inside.
Running costs: ductless hoods need filter changes; ducted hoods remove conditioned air from the room.

Brands we supply

BIOBASE fume hoods: ducted, ductless, PP and walk-in models
ESCO fume hoods: Frontier ducted hoods and Ascent ductless hoods

Frequently asked questions

What is the difference between a ducted and a ductless fume hood?

A ducted hood sends fumes outside through a duct and a fan. A ductless hood traps fumes in carbon filters and returns clean air to the room. Ducted hoods handle a wider range of chemicals; ductless hoods are easier to install and can be moved.

Is a fume hood the same as a biological safety cabinet?

No. A fume hood protects the user from chemical fumes. A biological safety cabinet uses HEPA filters to protect the user, the sample and the room from microorganisms. Choose by the hazard you work with.

What face velocity should a fume hood have?

Most laboratory fume hoods work at an inflow (face) velocity of about 0.3 to 0.5 m/s at the sash opening. Your safety officer or local guidelines may set a specific value.