Chemical Lab Explosion Proof Acid & Alkali Resistant Fume Hood with Heat Resistant

Basic Info.

Packaging & Delivery

Product Description

Product Description

The fume hood is often the primary control device for protecting laboratory personnel when working with flammable and/or toxic chemicals.
Before Using a Fume Hood
• Make sure that you are trained and understand how the hood works.
• Know the hazards of the chemical you are working with; refer to the
chemical's Safety Data Sheet (SDS) if you are unsure.
• Ensure that the hood is on.
• Make sure that the sash is open to the proper operating level, which is
usually indicated by arrows on the frame.
• Make sure that the air gauge indicates that air flow is within the required
range.
When Using a Fume Hood
• Never allow your head to enter the plane of the hood opening. For example, for vertical rising sashes, keep the sash below your face; for horizontal sliding sashes, keep the sash positioned in front of you and work around the side of the sash.
• Use appropriate personal protective equipment: Eye protection, gloves, lab coat.
• Be sure that nothing blocks the airflow through the baffles or through the baffle exhaust slots.
• Elevate large equipment (e.g., a centrifuge) at least two inches off the base of
the hood interior.
• Keep all materials inside the hood at least six inches from the sash opening.
• When not working in the hood, close the sash.
• Do not permanently store any chemicals inside the hood.
• Promptly report any hood that is not functioning properly to Facility Operations. Its sash should be closed and the hood "tagged" and taken out of service until repairs can be completed.
• When using extremely hazardous chemicals, understand your laboratory's action plan in case an emergency (e.g., power failure) occurs.

Other Hood Types
• Ductless Hood is another type of enclosure hood. Ductless hoods pass air from the hood interior through an absorption filter and then discharge the air into the laboratory. These types of hoods are only suitable for use with nuisance vapors and dusts that do not present fire or toxicity hazards. These types of hood have very specific uses.
• Capture Hoods are ventilating devices that can be positioned to pull in contaminants that are produced outside of a hood. A sufficient velocity called the capture velocity is necessary to "grab" the contaminant and move it into the hood. They are generally used in welding and grinding operations.
• Receiving Hoods are devices generally used to exhaust heat, water vapor, odors, and other non-hazardous materials. They are not a laboratory hood and generally are not effective for exhausting toxic or flammable materials.
• Biological Safety Cabinets are special safety enclosures used to handle and contain pathogenic microorganisms or chemotherapeutic agents. Biological safety cabinets are NOT laboratory fume hoods. Biological safety cabinets provide protection for the product and also protect laboratory personnel by utilizing vertical airflow.

• Hoods should be evaluated by the user before each use to ensure adequate face velocities and the absence of excessive turbulence.

6 Questions to Ask When Buying a Fume Hood:
-Which chemicals will you use within the hood?
-Is a ducted or ductless hood best suited to your needs and available space?
-Where will you place the fume hood in the lab? Consider workflows, access to external exhaust systems, and competing air patterns.
-What size fume hood will best suit your needs? Be sure to consider what (if any) equipment will be enclosed in the hood.
-Are any service fixtures or accessories such as airflow monitors, electrical outlets, water, or gas fixtures required?
-Are base cabinets for acid, solvent, or non-chemical storage required?