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The Norlab fume hoods offer the highest level of operator protection that your laboratory requires for handling hazardous chemicals and volatile substances, providing reliable containment and airflow performance:
• Containment
Our fume hoods capture every particle, vapor, and toxic emission before it reaches your team. Consistent face velocity and optimal airflow control across the entire work surface — so your operators work with confidence, not risk.
• Customization
Our fume hoods can be customized in width, sash configuration, liner material, plumbing fixtures, and ventilation setup to match the specific chemical processes including acid digestion, vapor extraction, and pipetting.
• Compliance
Our fume hoods meet SEFA 1, ANSI/ASHRAE 110 and ISO 9001 standards, ensuring your laboratory passes every face velocity test and stays fully compliant with ventilation safety regulations from day one.
High-quality Airflow
Gas and Water Valves
Waterproof Plug
LCD Control Panel
Sash Position Sensor
Underbench Space
Norlab fume hoods are engineered using galvanized steel, cold-rolled steel, HPL phenolic, or polypropylene construction — paired with a phenolic resin countertop resistant to acids and aggressive chemicals. A transparent acrylic sash provides full visibility of the work surface, while optional underbench safety cabinets deliver up to 60 minutes of fire-resistant protection for chemical storage below. Every unit is manufactured under strict American quality standards and designed to maintain consistent airflow containment, protecting laboratory personnel from hazardous fumes, vapors, and particulates during daily operations.
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Reference |
F-Airflex | Galvanized Steel |
A-Airflex | Galvanized Steel |
G-Airflex | Phenolic Resin |
P-Airflex | Polypropylene |
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Available Sizes |
1200 mm (47″) |
1200 mm (47″) |
1200 mm (47″) |
1200 mm (49″) |
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External Dimensions: |
47.3″ x 31.4″ x 55.1″ in |
47.2″ x 31.5″ x 90.5″ in |
47.2″ x 31.4″ x 90.5″ in |
49″ x 31.4″ x 55.9″ in |
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Interior Dimensions: |
41.3″ x 27.1″ x 29.5″ in |
37.4″ x 21.6″ x 80.7″ in |
38.5″ x 27.1″ x 29.9″ in |
38.8″ x 19.6″ x 27.5″ in |
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Air Velocity |
0.6 – 1.3 m/5 |
0.6 – 1.3 m/5 |
0.6 – 1.3 m/5 |
0.3 – 0.8 m/5 |
• SEFA 1
Performance standard developed by the scientific equipment and furniture association (SEFA) for laboratory fume hoods and ventilated enclosures. Establishes requirements for design, construction, airflow performance, containment effectiveness, structural integrity, operational safety, and long-term reliability. Provides testing and evaluation criteria to assess the ability of fume hoods to safely contain hazardous vapours, fumes, gases, and airborne contaminants generated during laboratory procedures. Widely referenced by laboratory planners, architects, manufacturers, research institutions, pharmaceutical facilities, healthcare organisations, educational laboratories, and industrial testing environments requiring high-performance laboratory ventilation systems.
• ANSI/ASHRAE 110
American national performance standard developed by the american society of heating, refrigerating and air-conditioning engineers (ASHRAE) for laboratory fume hood testing. Establishes procedures and performance requirements for evaluating containment effectiveness, tracer gas leakage, face velocity performance, airflow patterns, and operator protection under laboratory operating conditions. Commonly applied to laboratory fume hoods used in research, healthcare, pharmaceutical, biotechnology, educational, and industrial facilities where the safe containment of hazardous fumes, vapors, and airborne contaminants is critical.
• ISO 9001
International quality management standard published by the international organization for standardization (ISO). Establishes requirements for a documented quality management system (QMS) focused on consistent manufacturing processes, quality assurance, customer satisfaction, continuous improvement, and product traceability. For fume hoods, ISO 9001 certification demonstrates that manufacturing operations follow recognized quality management practices designed to ensure consistent product quality, reliable performance, manufacturing precision, and compliance with customer and regulatory requirements across laboratory, healthcare, educational, pharmaceutical, and industrial applications.
• Since installing the airflex series, airflow has been consistent and predictable. Operators immediately felt safer, and our internal safety assessments showed measurable improvement in containment performance. 
• The airflex fume hoods gave us confidence that we weren’t just meeting minimum requirements, but genuinely protecting our staff. The reduction in turbulence and the smooth airflow made a visible difference during day-to-day work.
Not all fume hood models are equally suited for every process, and selecting the correct Airflex model for your application is one of the most important decisions in the specification process. The A-Airflex and F-Airflex fume hoods are designed for routine chemical operations such as light acid digestions, vapor and gas extraction, and chemical transfers including pipetting. These models are ideal for applications involving low to moderate concentrations of chemical fumes and vapors.
The G-Airflex and P-Airflex fume hoods are designed for more demanding chemical processes, including prolonged acid digestions and complex chemical reactions that generate higher concentrations of corrosive fumes. Their construction and airflow design make them better suited for handling aggressive acidic environments and continuous chemical processing. The right model for your specific application is determined during the design consultation based on the chemicals involved, the work procedures, and the laboratory’s ventilation requirements.
No, fume hoods and laminar flow cabinets serve fundamentally opposite purposes and cannot substitute for each other. Fume hoods are designed to protect the operator: they capture hazardous vapors, fumes, and gases generated inside the hood and exhaust them away from the user.
The airflow moves from the room toward the operator and then into the hood, creating a barrier between the work and the person. Laminar flow cabinets are designed to protect the product or sample from contamination: HEPA-filtered air flows either horizontally toward the operator or vertically downward over the work surface, creating a clean particle-free environment inside the cabinet.
Using a laminar flow cabinet instead of a fume hood when working with hazardous chemicals exposes the operator directly to vapors being pushed outward by the clean airflow — a serious safety hazard. If your process requires both product protection and operator protection simultaneously, that requires a biological safety cabinet (BSC Class II), not either a fume hood or a laminar flow cabinet alone.
Norlab airflex fume hoods are engineered to meet ASHRAE 110 performance criteria, which is the primary standard used in the US for evaluating fume hood containment through tracer gas testing. OSHA 29 CFR 1910.1450 (the laboratory standard) requires that fume hoods used with hazardous chemicals provide adequate containment — ASHRAE 110 compliance is the accepted method of demonstrating that.
After installation, fume hood performance should be verified before initial use with a face velocity measurement and, where required by your facility’s safety program or regulatory framework, an ASHRAE 110 tracer gas test. Ongoing performance verification — face velocity checks — should be conducted annually at minimum, or after any relocation, duct modification, or room HVAC change. Many regulated facilities (pharmaceutical GMP, university research) require semi-annual checks. Norlab provides the technical documentation for each unit that supports your facility’s initial qualification and ongoing inspection records.
Face velocity is the single most critical safety parameter in any fume hood. If it’s too low (below 0.3 m/s), hazardous vapors can escape the hood and reach the operator’s breathing zone. If it’s too high (above 0.5 m/s), turbulent airflow creates vortices that pull contaminants out of the containment area.
Norlab Airflex Fume Hoods are engineered with optimized airflow geometry to maintain consistent face velocity (typically 0.3–0.5 m/s) across the entire sash opening, ensuring reliable operator protection without creating disruptive turbulence inside the work chamber. The aerodynamic sash design and internal baffles work together to deliver smooth, laminar-like containment regardless of sash height position.
Fume hoods are among the most energy-intensive equipment in any laboratory — a single conventional hood running 24/7 can consume as much energy as 3.5 average American homes annually, primarily due to the conditioned air it exhausts from the building. This makes operating cost a major factor for facilities with multiple hoods.
Norlab Airflex Fume Hoods incorporate airflow optimization features that reduce energy consumption while maintaining full containment performance. The efficient internal baffle system and aerodynamic design minimize the total exhaust volume required to achieve safe face velocities, translating to measurable HVAC savings over the hood’s operational lifetime — particularly impactful for labs operating multiple units simultaneously.
Your lab’s fume protection solved — engineered to your exact airflow and safety requirements.
Tell us what you’re working with and we’ll recommend the right fume hood type, sash configuration, and ventilation setup — at no cost, no obligation.
Expert guidance included — free 3D design
Our lab safety specialists review your project personally.
Fully custom — width, sash type, liner, plumbing fixtures
Fume hoods built around your chemical processes and layout.
USA owned & operated — nationwide delivery
Manufactured and supported from Miami, FL.
