Description

Ducted Fume Hood | Exterior-Venting Exhaust Hood for Labs |USA Lab

A ducted fume hood is a ventilated enclosure designed to protect labs and users from hazardous and respirable fumes, dust, and particulates by exhausting contaminants outside the building through a ducting system. Ducted (exterior-venting) exhaust hoods are typically selected for applications involving high volumes of volatile organic compounds (VOCs) and toxic chemicals, gases, or powders.

In many facilities, ducted fume hoods serve as a “last-resort” physical safety barrier against spills and leaks that may occur during demanding processes. While they are not mobile solutions, ducted fume hoods can be a primary engineering control for severe toxins that cannot be safely recirculated into the immediate environment.

Built with durable, chemical-compatible construction and practical features for day-to-day lab workflows, USA Lab ducted fume hoods support consistent airflow and continuous contaminant removal for safer operations.

Inline Fan: Variable Speed Control - Standard
700 CFM High, Down to 240 CFM Low

3-5 Day Lead Time

Please consult a qualified professional for proper installation and exhaust/ducting compliance.
Confirm application suitability with a subject matter expert before use with highly toxic or high-volatility chemicals.

Exterior-Venting (Ducted) Continuous Contaminant Removal Chemical-Compatible Construction Standard & Custom Sizes

Safety: Helps protect users from hazardous fumes, dust, and particulates during chemical handling.

Exhaust: 4" exhaust collar included for connection to building ductwork and exterior venting.

Lighting: Integrated LED light for clear visibility across the work surface.

Why buy from USA Lab

Expert Support
Engineers & technicians on staff.

Quality First
Tested and trusted products.

Fast Fulfillment
Nationwide 1-2 day shipping.

Warranty & Parts
US-based service & spares.

Resources & Downloads

Chemical Analysis Form

Is your application appropriate for a ducted fume hood?

Built for high-risk applications — commonly chosen when volatile gases or highly toxic substances cannot be recirculated.
Use-case examples — suitable for pH testing, mixing, chemical transfer, dilution, and minimal heating when properly specified.
Key considerations — chemical types, quantities, temperatures, and frequency of use all impact hood selection.
Engineering control — ducted systems help reduce the risk of dangerous fumes being returned to the lab environment.
Expert guidance recommended — consult a subject matter expert to confirm the correct hood type for your process.

Talk to an expert

Get sizing help, ducting guidance, and configuration recommendations for your workflow.

Call 734-855-4890

Technical Specifications

Model	18"	24"	30"	40"	50"	60"	70"
Hood Dimensions OD	18.5"D x 20" W x 19"H	24” D x 26” W x 25” H	24"D x 32"W x 25"H	24"D x 42W" x 25"H	24"D x 52W" x 25"H	24"D x 62W" x 25"H	24"D x 72W" x 25"H
Hood Dimensions ID	18"D x 18"W x 18"H	23.5 “D x 24”w x 24” H	23.5"D x 30"W x 24"H	23.5"D x 40"W x 24"H	23.5"D x 50"W x 24"H	23.5"D x 60"W x 24"H	23.5"D x 70"W x 24"H
Exhaust Connection:	4” OD Outlet Collar	4" or 6" OD Outlet Collar	6" OD Outlet Collar	6" OD Outlet Collar	8" OD Outlet Collar	8" OD Outlet Collar	8" OD Outlet Collar
Weight:	Approx. 25 lbs.	Approx. 45 lbs.	Approx. 50 lbs.	Approx. 65 lbs.	Approx. 65 lbs.	Approx. 90 lbs.	Approx. 105 lbs.
Materials (Sides)	0.25" White Acrylic	0.25" White Acrylic	0.25" White Acrylic	0.25" White Acrylic	0.25" White Acrylic	0.25" White Acrylic	0.25" White Acrylic
Materials (Base)	0.5" White High Density Polyethylene (HDPE)	0.5" White High Density Polyethylene (HDPE)	0.5" White High Density Polyethylene (HDPE)	0.5" White High Density Polyethylene (HDPE)	0.5" White High Density Polyethylene (HDPE)	0.5" White High Density Polyethylene (HDPE)	0.5" White High Density Polyethylene (HDPE)
Materials (Top)	0.5" Clear Polycarbonate	0.5" Clear Polycarbonate	0.5" Clear Polycarbonate	0.5" Clear Polycarbonate	0.5" Clear Polycarbonate	0.5" Clear Polycarbonate	0.5" Clear Polycarbonate
Materials (Front Window)	0.25" Clear Polycarbonate	0.25" Clear Polycarbonate	0.25" Clear Polycarbonate	0.25" Clear Polycarbonate	0.25" Clear Polycarbonate	0.25" Clear Polycarbonate	0.25" Clear Polycarbonate
Lighting	LED light included	LED light included	LED light included	LED light included	LED light included	LED light included	LED light included

Popular Industries & Use Cases

Botanical Extraction Pharmaceutical Chemical Sciences Academic & Research

Business Solutions & Procurement

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Custom Solutions

Tailored tanks, skids, and integration help.

Custom Request Consulting

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FAQ

What is a ducted fume hood?

A USA Lab Ducted Fume Hood is an exterior-venting exhaust hood that uses building ductwork to remove hazardous and respirable fumes, dust, and particulates from the lab and release them outside the work environment.

When should I choose a ducted fume hood vs a ductless fume hood?

A USA Lab Ducted Fume Hood is typically recommended for high volumes of VOCs and toxic chemicals, gases, or powders that cannot be safely filtered and recirculated. A ductless hood filters air and returns it to the lab, which may require more frequent filter changes depending on use.

What are suitable applications for a ducted fume hood?

Depending on the chemicals and quantities involved, USA Lab Ducted Fume Hoods are commonly used for pH testing, mixing, chemical transfer, dilution, and minimal heating. For high-volatility or highly toxic substances, consult a subject matter expert to confirm the correct hood configuration.

What safety practices should I follow when operating a ducted fume hood?

Visually inspect your USA Lab Ducted Fume Hood frequently, limit pedestrian traffic in front of the hood, place bulky equipment toward the rear, and raise large equipment at least 2" off the surface to maintain airflow. Establish a regular cleaning schedule if the hood is used often.

Important Shipping Notice!

DISCLAIMER:

All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.

Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.