PCR ductless fume hood
Purair® PCR Laminar Flow Cabinet
  • Excellent interior protection from particulate contamination
  • Multiple options for customized applications
  • Easy-to-change HEPA filtration
  • Vertical laminar airflow
  • Powerful built-in UV lamp
  • Choose from 2', 3' or 4' models.

Polymerase chain reaction1 (PCR) is a simple and inexpensive technique to make multiple copies of a targeted nucleotide sequence from a DNA sample, and to amplify sequences from small samples. This technique is widely used in genetics laboratories that work with DNA and RNA.

Because PCR amplification is extremely sensitive to contamination, prevention of contamination requires good laboratory practices to minimize external or cross-contamination during reagent preparation, sample preparation and

The Purair PCR laminar flow cabinet employs the Air Science Multiplex™ HEPA filtration technology to create a safe, energy-efficient contaminant-free environment. It is ideally suited for use with non-hazardous contaminants and when flexible access to the instrumentation in the cabinet is required.
1 Polymerase chain reaction (PCR) is a patented process owned by Hoffman La Roche.
(pdf download)
These cabinets are intended for use in nonhazardous applications where biological or biohazard byproducts are not generated and user protection is not required.
  • PCR Laboratories
  • Forensics
  • Pharmaceutical
  • Sample Preparation
  • General Research

PCR ductless fume hood callouts

Purair® PCR-24, shown with optional mobile cart and optional stainless steel work surface.
A. Task Lighting: Fluorescent cabinet lamp located away from laminar flow area.
B. Ultraviolet Lighting: Built-in ultraviolet lamp with timer permits decontamination between PCR cycles. Includes a double-flap safety cover of 0.2" (5 mm) UV absorbing 254 nm beta radiation resistant polycarbonate; provides superior operator protection while allowing easy access to the work zone. Timer can be set over range of 0 to 60 minutes or set to HOLD.
C. Comfort: Ergonomically angled front improves reach and user comfort.
D. Decontamination Shelf: Mounted on the back wall is proximate to the UV lamp for maximum exposure.
E. Filter: Camfil Farr main HEPA filter with 99.99% efficiency for 0.3 micron particulates. The pre-filter can be changed while the unit is operating to prevent operator exposure to chemical vapors.
F. Pass Through Ports: Convenient rear-wall pass through ports for safe routing of instrument cords, cables and leads.
G. Double-Hinged Self-Locking Front Sash: With overlap closed, the cabinet sash protects the operator with 100 fpm airflow. The sash is easy to open and latch.
H. Fan: High-performance ebmpapst™ centrifugal fan.
I. Stand: Optional base stand converts to mobile cart with optional locking casters.
J. Work Surface: Large polypropylene work surface, white or black standard, with optional stainless steel work surface available.
K. Filter Door Key: Prevents unauthorized removal or accidental exposure to dirty filters.
L. Magnetic Door Latch: Safety interlock prevents accidental operator exposure when door is opened.
360 Degree Visibility: Clear back and side panels
allow ambient illumination into the chamber and provide users with an unobstructed view of its contents.
Standards Compliant: Performance specifications and construction meet or exceed OSHA, ANSI and relevant international standards to assure operator safety.
Construction: All models are available in either metal or polypropylene construction, specify metal or polypropylene when ordering. Available in 120V, 60Hz or 220V, 50Hz models.
Steel Support Frame: The chemical resistant epoxy coated steel frame adds mechanical strength. Optional all polypropylene construction is available if desired.
PCR ductless fume hood controller
The integrated control panel features an On/Off switch for the fan, light and UV lamp timer.
Standards Compliant
Performance specifications and construction meet or exceed OSHA, ANSI and relevant international standards to assure operator safety.
The Air Science® Performance Advantage
Each Air Science fume hood includes features expressed through sound design and certified quality construction. Options and accessories add functional performance to meet specific applications.
  • Professional Quality. Air Science fume hoods comply with current technical and safety regulations.
  • Multiplex Filtration. The Air Science Multiplex Filter offers a range of options for high performance protection.
  • Industrial Components. The cabinet frame and work surfaces are durable and chemically resistant.
  • Reliability. Internal systems are isolated from fumes, extending product life.
Purair PCR Ductless Fume Hood airflow
Purair® PCR-36 shown with Multiplex™ filtration system.
Room air enters from the top of the cabinet through the disposable pre-filter where larger particles are trapped, increasing the service life of the main HEPA filter.
Air is forced evenly across the HEPA filter to deliver a flow of pure, uniform air within the work zone to dilute and flush airborne contaminants from the work area.
A nominal filter face velocity of 0.45 m/s (90 fpm) ensures that there is sufficient number of air changes within the work zone to eliminate cross-contamination and to maintain optimum cleanliness.
Purified air travels across the work zone to the work surface in a vertical, unidirectional downflow stream, and then exits the work zone across the open cabinet front area of the cabinet.
A. The main filter is easy to replace; no tools required. The filter clamps tightly against the filter gasket to prevent filter bypass and to maintain filter integrity.
HEPA Filtration
Air Science uses long-life Camfil Farr HEPA filters without aluminum separators to increase filter efficiency, minimize the potential for leakage and increase filter life.
  • Filters include a lightweight aluminum frame for structural stability and elimination of swelling common to conventional wood frames.
  • The HEPA filters are easy to replace with common tools.
Energy-Saving Blower System
Purair PCR cabinets incorporate energy-efficient ebmpapst™ permanently lubricated direct drive centrifugal blowers for maximum operational savings, low noise and minimal vibration.
Face Velocity
Purair® PCR cabinets maintain a 0.45 m/s or 90 fpm air flow velocity, measured 6”/150mm from the filter face, with a uniformity of +/- 20% across the filter face. This face velocity is in compliance with USA and international standards for safety and performance.
Convenience and Construction Benefits
  • Purair® PCR cabinets are available in three model sizes with various options.
  • Cabinets are shipped fully assembled with standard power cords; no installation required.
  • The integral UV lamp fixtures are pre-installed.
  • All filters are pre-installed, easy to access and easy to change.
  • Products are designed for desktop use, or may be installed on an optional base stand or mobile cart.
  • The high capacity air handling system delivers flow velocity of 0.45 m/s or 90 fpm.
  • Purair® PCR cabinets are constructed of steel with a microbial powder finish coating.
  • The optional stainless steel work surface includes lips on all four sides to contain spills.
PCR ductless fumehoods drawings
Weight (lbs/Kg)
Nominal Width
(W x D x H)
(W x D x H)
610 mm
610 mm
679 mm
24" x 27" x 35"
610 x 686 x 889 mm
40" x 40" x 40"
1016 x 1016 x 1016 mm
72 / 33
129 / 59
914 mm
610 mm
679 mm
36" x 27" x 35"
914 x 686 x 889 mm
40" x 40" x 40"
1016 x 1016 x 1016 mm
99 / 45
157 / 71
1219 mm
610 mm
679 mm
48" x 27" x 35"
1219 x 686 x 889 mm
52" x 45" x 40"
1321 x 1143 x 1016 mm
138 / 63
195 / 88
Specifications are subject to change without notice.
Product Specifications

Air Science Model
Airflow Pattern
Vertical Downflow
0.45 m/s (90 fpm)
 Filter Specifications
Disposable polyester fibers with 85% arrestance
Main Filter
HEPA efficiency: 99.99% at 0.3μm
Screw Compression Clamp
Compact fluorescent bulb removed from air stream
UV Lamp
1 x 253.7 nanometer 15 watt
 Side Windows
Visible Opacity
Transparent, colorless
UV Opacity
UV absorbing
White epoxy-coated steel frame with blue legs on cabinet sides.
Work Surface
Standard, white or black polypropylene. Optional, stainless steel. Specify when ordering
Pass-Through Ports
Two standard, tear-drop style
Decontamination shelf on rear wall
Night Door/Cover
Standard, hinged door cover with safety interlock.
ebmpapst™ centrifugal fan.
120V, 60Hz or 220V, 50Hz voltages available. Specify when ordering.  Other voltage options available.
Electrical Controls
Main On/Off switch for fan and lighting. Solid-state fan speed control with RFI filter maintains blower uniformity. UV timer, safety interlock shut-off
*Average airflow measured 6"/150mm from filter face. Uniformity is +/- 20%.
**Camfil Farr filters; HEPA efficiency: 99.99% at 0.3μm
Options and Accessories

Purair® Flow Model
Base Stand
Floor-standing base for cabinet. Available with leveling feet or locking casters. Optional motorized height adjustment.
Polypropylene Construction
Cabinets are available in all-polypropylene construction. Contact Air Science® for information.
ULPA Filter
UPLA filter efficiency 99.999% at particle sizes between 0.1 to 0.3μm


Work Surface
Optional stainless steel work surface available
Monitair® Controller
Microprocessor controller monitors cabinet operating procedures, airflow, UV, and filter condition; emits audio and visual alerts if conditions become unsafe.
PCR ductless fume hoods Monitair controller
The optional Monitair microprocessor controller monitors and displays cabinet operating parameters, airflow, containment, and filter condition; emits audio and visual alerts if conditions become unsafe, all on a LCD display.
Purair® PCR cabinets maintain a 0.45 m/s (90 fpm) airflow velocity, measured 6" (150 mm) from the filter face, with a uniformity of +/- 20% across the filter face. This face velocity is in compliance with U.S.A. and international standards for safety and performance. The HEPA filters are easy to replace with common tools.
Standards & Compliance

Quality Management Systems
ISO 9001:2008
ISO 14001:2004
EnergyStar™ Partner
Cabinet Performance
AS 2252.6
Air Quality
ISO 14644-1, Class 3
EN 1822
Electrical Safety
CE Mark
ROHS Exempt under EEE Category 9
Air Science®  120 6th Street  Fort Myers, FL 33907
T/ 239.489.0024  Toll Free/800.306.0656  F/800.306.0677
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