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Laboratory Fume Hoods |
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AireStream Laboratory Fume Hoods |
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HEMCO offers a complete line of UniFlow laboratory fume hoods. Bench-mounted hoods in widths from 24” to 96”. Floor-mounted (walk-in) hoods from 48” to 144” wide and up to 96” deep. UniFlow fume hoods are designed for performance, user protection, & save 50% on reduced energy cost. |
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Underwriters Laboratory U.L. 1805 for fume hoods & cabinets, this classification covers construction, materials, flammability, & containment. U.L. 3101 electrical performance is tested using HIPOT testing, (high potential high voltage). HEMCO’s test facility is compliant to test fume hoods for U.L.1805 Classification |
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CSA, Canadian Standards Associations
CAN/CSA - C22.2 compliant for electrical components |
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CE European Community Configured International Electrical Services |
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OSHA, Occupational Health & Safety Federal Register 29 CFR part 1910 |
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SEFA, Scientific Equipment Furniture Association, SEFA 1-2010 recommended practices for fume hoods |
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ASHRAE, American Society of Heating, Refrigerating and Air-Conditioning Engineers, ASHRAE - 110, 1995 |
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ANSI, American National Standards Institute,Z9.5, 2012 Laboratory Ventilation |
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ASTM, American Society for Testing and Materials ASTM E-84, 2001 |
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NFPA, National Fire Protection Association, NFPA - 45, 2000 |
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5 year warranty on all UniFlow SE, LE & CE AireStream
models which are U.L. 1805 classified, guaranteed |
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Made in the U.S.A. |
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| UniFlow SE AireStream 60 inch laboratory fume hood #45521 shown with optional service fixtures, plumbing and electrical, air flow monitor, work surface, base cabinet and accessories. HEMCO recommends fume hoods be equipped with an air flow monitor, per OSHA 29 CFR part 1910. |
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Advantages of UniFlow CAV By-Pass Fume Hoods |
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1. Important: by incorporating Sash Management 1-2-3, you are
saving 50% on overall energy costs, and providing the best
possible user protection & safety. |
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6. The Sash Stop is designed for user protection and CFM
reduction. Allows sash to open to a maximum of half open,
providing up to 50% energy savings. |
2. Recommended that hoods be used with sash 1/2 open with
face velocity of 80-100 FPM. Sash stop located at 1/2 open
position. With upper sash raised to the 1/2 open position the
supply air CFM & static pressure are as noted.
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7. Sash at full open is primarily designed for set-up of equipment
and maintenance. Fume hood users should wear personal
safety protection equipment, consult Lab Safety Officer. |
3. Sash in full open position should be for setup of apparatus &
maintenance service only. If design opening is at 1/2 open at
100 FPM, face velocity at full open would be approximately 50
FPM. The recommended face velocity for efficiency & safety
is 80-100 FPM. Lower face velocity may compromise user safety.
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8. HEMCO recommends 10-12 room air changes per hour for the
health & safety of personnel. Example 10’ X 20’ room 10’ high
receiving 10 room air changes per hour requires 350 CFM air
flow through the lab. |
4. When hood is not in use, keep sash in closed position.
5. Sash stops are standard on U.L. Classified Fume Hoods.
UniFlow SE, LE and CE AirStream fume hoods |
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9. At an average utility rate of $7.00 per CFM, a typical annual
savings on a 4’ fume hood would be $2705.00 and on a 6’ fume
hood $4067.00, by using Sash Management 1-2-3., Sash Stop
at 50% open. |
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Traditional Fume Hoods vs UniFlow Fume Hoods
Innovation is the Difference Between the Same Perspective and an Entirely New one |
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The 1925 Ford Tri-motor, featured all metal construction, no wood. Its fuselage and wings were constructed of corrugated sheet metal, for strength. These aircraft were well-designed, and reliable (for the era). |
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The Boeing 787 Dreamliner features aerodynamic composite construction. Composites have a higher strength to weight ratio,
which helps to make the 787 a lighter more energy efficient aircraft. |
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| Traditional Fume Hoods |
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1. Fully Assembled Fume Hoods |
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UniFlow Fume Hoods |
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Traditional Fume Hood 60” wide Constructed of formed painted sheet metal panels & held together with sheet metal fasteners & brackets. Chemical resistant interior liner panels with sharp corners sealed with caulking.
1 year warranty. Heavy challenging installation.
Weight 435 lbs
UniFlow SE Fume Hood 60” wide Unitized composite superstructure for total chemical resistance. non-metallic construction. Interior fume chamber one piece glass smooth, all coved corners for ease of cleaning. 5 year warranty. Unitized construction reduces weight for ease of installation.
Weight 265 lbs
Weight savings difference = 170 lbs |
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2. Disassembled Fume Hoods |
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Traditional Fume Hood 60” wide 170 bolts, nuts and screws removed. 14 painted sheet metal panels with fasteners & brackets removed. 8 flat composite liner panels, no caulk to seal cracks, includes sash assembly & 36” fluorescent 2 bulb T-8 light fixture with steel painted white reflector.
Weight 435 lbs
UniFlow SE Fume Hood 60” wide Unitized construction for superior durability and long life.
Meets NFPA 45 for fire resistance in laboratories.
Includes sash assembly & T-5 fluorescent with polished stainless steel reflector.
Weight 265 lbs
Weight savings difference = 170 lbs |
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3. Fume Chamber Composite Panels |
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Traditional Fume Hood 60” wide 8 composite liner panels to fabricate fume chamber. No caulking or sealant in corner cracks. The ceiling panel shown with sheet metal vent outlet. Sash assembly and light assembly removed.
Weight 139 lbs
UniFlow SE Fume Hood 60” wide Unitized composite superstructure for total chemical resistance. non-metallic construction. Interior fume chamber one piece glass smooth, all coved corners no joints. 5 year warranty. Unitized construction reduces weight for ease of installation.
Sash assembly and light assembly removed.
Weight 210 lbs |
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Customer Comments:
Hoods, based on the nature of the products we analyze (sulfur chlorides, sulfuric acids, oleums), last about two to three
years. At the end of three years, the chemicals have corroded both the exterior steel panels and the internal steel frame work of the metal hoods. We replaced them eight years ago with HEMCO UniFlow fiberglass fume hoods the installation was easier and we have had no repairs since then. We are building a new facility, and we plan to install HEMCO hoods.
Steve Mixon, Chief Chemist |
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