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ValuLine™ WhisperFlow™ Polypropylene Laminar Flow Hoods

Features Key

A 0.5"-thick chemical-resistant polypropylene construction with dissipative PVC tilting sash
B Fan/Filter module with HEPA or ULPA particle filter
C Integrated bottom with raised lip safely contains spills
D Fluorescent light
  Options include ionizing bar and digital air speed meter


WhisperFlow™ Hoods available in many other sizes, materials, and configurations.


  • Portable, economical system converts any benchtop surface into a vertical laminar flow station (select 36" or 48" width)
  • Provides an average air flow speed of 90 feet/minutes (measured with HEPA filter)
  • Quiet operation: 50 dBA measured 30" from filter face
  • Polypropylene hood construction resists a wide range of chemicals, including alcohol and other biocides
  • Includes built-in polypropylene bottom with spill tray and coved seams for easy cleaning
This versatile laminar flow hood gives you a particle-free work environment on any available work surface.

FFU: Quiet, Reliable Operation

It consists of two modules: a filter/fan unit (FFU), which houses a particle filter, and a polypropylene hood. The FFU houses a HEPA filter, rated 99.99% efficient with 0.3 micron particles. Its internal baffle system ensures uniform face velocity, and its 50 dBA noise rating ensures quiet operation. The low vibration level ensures minimal disruption of high-precision assembly or test procedures performed inside the hood. ULPA FFUs, rated 99.99% efficient @ 0.12µm particles, along with ionization units are also available.

Sturdy, Chemical-Resistant Polypropylene Construction

The 0.5"-thick polypropylene construction offers excellent chemical compatibility, durability, and cleanliness. A hinged front access shield, made of static-dissipative PVC, restricts the air exit and enhances laminar flow. Continuous seams and coved corners simplify cleaning.

Ordering Information

Outside Dimensions
(subtract 1" for ID)
Power ValuLine™ WhisperFlow™ Hood Corresponding HEPA
Fan/Filter Unit*
Cat. # Price Cat. # Price
48.75"W x 24.75"D x 39"H
(42.5" with FFU)
120VAC, 60Hz 1688-40 $ 1,436
6601-24-H $ 739
220VAC, 50/60Hz 1688-40-220 $ 1,520
6601-24-H-220 $ 893
36.75"W x 24.75"D x 39"H
(42.5" with FFU)
120VAC, 60Hz 1688-41 $ 1,303
6601-23-H $ 739
220VAC, 50/60Hz 1688-41-220 $ 1,387
6601-23-H-220 $ 893
*ULPA modles available

IonBar™ Static-Neutralizing Bar (with Installation Kit*)
This low-voltage system safely neutralizes status charges under the hood. Includes mounting kit for installation onto the WhisperFlow™ Fan/Filter Unit.

For Hood Width (bar length) 110VAC, 60Hz 220VAC, 50/60 Hz
Cat. # Price Cat. # Price
36" (33") 2005-48 $ 649
2005-48-220 $ 660
48" (44") 2005-49 $ 744
2005-49-220 $ 752
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