Laboratory Fume Hoods — Chemical Ventilation & Containment
Ducted and ductless fume hoods for laboratories. ASHRAE 110 tested. 2’–8′ widths. Benchtop, floor-mounted, perchloric acid, and radioisotope models. Free design.
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Laboratory Fume Hoods — Protect Your People and Your Science
Laboratory fume hoods are the primary engineering control for protecting lab workers from hazardous chemical vapors, fumes, and aerosols. A properly selected, installed, and maintained fume hood captures airborne contaminants at the work surface and exhausts them away from the breathing zone — keeping exposure levels below permissible limits.
Labs USA supplies ducted and ductless fume hoods from multiple manufacturers in sizes from 2′ benchtop units to 8′ floor-mounted walk-up hoods. Every hood we sell meets ASHRAE 110 testing standards and ANSI/AIHA Z9.5 guidelines. We provide free layout design, specification assistance, delivery, and installation coordination including ductwork connection and HVAC integration.
Fume Hood Types
Key Performance Specifications
| Specification | Standard Requirement | Why It Matters |
|---|---|---|
| Face Velocity | 80–120 fpm (0.4–0.6 m/s) | Ensures vapors are captured without turbulence |
| ASHRAE 110 Rating | AU/AM 0.05 ppm or better | Industry standard containment test |
| Sash Height | 18″ working opening | Standard operating position for optimal airflow |
| Exhaust Volume | Varies by width/height | Must match building HVAC capacity |
Liner Material Options
Epoxy-Coated Steel
Standard for general chemistry. Good acid and solvent resistance. Most cost-effective option.
Polypropylene
For heavy acid work (HF, HCl, H₂SO₄). Seamless construction resists acid attack. Required for hydrofluoric acid.
Stainless Steel
For perchloric acid, radioisotope, and cleanroom applications. Decontaminable and wash-down capable.
Frequently Asked Questions
What size fume hood do I need?
Fume hood size depends on the work being performed. 4′ hoods are common for individual chemistry workstations. 6′ hoods provide more workspace for larger apparatus. 8′ hoods serve as shared hoods or for work requiring wide setups. Benchtop 2’–3′ hoods work for occasional use and spot ventilation. Labs USA helps you size hoods based on your specific workflows.
What’s the difference between ducted and ductless fume hoods?
Ducted hoods connect to building exhaust and remove all contaminants. They work with any chemical and are the standard for most labs. Ductless hoods use carbon filters to capture specific chemicals and recirculate air. They’re portable, cheaper to install, and don’t require ductwork — but they only work with chemicals their filters are rated for.
How much does a fume hood cost?
Fume hood prices range from $2,000 for a small ductless unit to $15,000+ for a large ducted hood — plus installation and ductwork. See our cost guide for detailed pricing.
Do fume hoods need annual certification?
Yes. OSHA requires that fume hoods be evaluated annually — and many institutions require semi-annual testing. Certification includes face velocity measurement, smoke visualization, and sash alarm verification. Labs USA can recommend local certification services.
Can a fume hood be added to an existing lab?
Yes. Ducted hoods require connection to building exhaust (new ductwork may be needed). Ductless hoods can be placed on any lab bench with a standard electrical outlet — no construction required. Labs USA evaluates your existing HVAC capacity before recommending ducted installations.
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Need a Fume Hood? Let’s Spec It Right.
Free specification assistance, layout design, and quotes. Call (801) 855-8560.