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Terra Part #PriceShips in
Non-Dissipative PVC Non-Dissipative PVC 4950-92$55015-19 Days
Clear Acrylic Clear Acrylic 4950-89$5011-3 Days
Amber Acrylic Amber Acrylic 4950-91$46015-19 Days
Static-Dissipative PVC Static-Dissipative PVC 4950-90$8351-3 Days
Polypropylene Static-Dissipative PVC 4952-00$83315-19 Days
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Product Details

Designed in the USA

• Easily placed over small process equipment, beakers, flasks and other materials to protect against spills and fumes

• Prevents drafts from affecting delicate measurements with electronic balances

• Hinged access shield swings open for additional clearance

• Balances

• Ideal for use with today's sensitive electronic balances—transparent barrier protects against drafts, bumps, spills, and splashes

• Removable lid provides easy access for adding liquids or dry chemicals from top

Unit of Measure: of 1

Laminar Flow Hoods

  • Polypropylene Dead-Air Box Polypropylene Mini-Hood (Dead-Air Box)
  • Clear Acrylic Dead-Air Box Acrylic Mini Hood (Dead-Air Box)
  • Two Sizes Balance Shields Acrylic
Polypropylene Dead-Air Box
Clear Acrylic Dead-Air Box

Features & Benefits

Features & Benefits

Specializing Common Lab Hoods

Adapting Common Laboratory Hoods for Specialty Purposes

Most hoods designed for specialty applications are derived from standard laboratory configurations (e.g. laminar flow and fume hoods) adapted to specific requirements.


PCR Workstations

Polymerase chain reaction (PCR) is a common technique used in molecular biology to exponentially amplify a target region of DNA or RNA. PCR can turn a single piece of DNA into more than a million pieces in the matter of hours. Unfortunately, a single piece of contaminating DNA can also be amplified, making it extremely important that researchers work within a sterilized area that prevents cross contamination of samples.

PCR workstations were designed to minimize this problem. Adapted from laminar flow hoods, PCR workstations provide HEPA-filtered, sterile air within the hood. These hoods are outfitted with UV-C germicidal lights to disinfect the work surface when the hood is not in use. The lights are also placed on a timer to reduce the risk of UV exposure. In addition to its germicidal properties, UV-C light also causes breaks in strands of DNA that prevent the DNA from being amplified during PCR. Therefore, the UV-C light also serves to prevent carry-over contamination from previous experiments.

Explosion-Proof Hoods

Explosion-proof hoods are a variation of either the laminar flow or exhaust fume hood, designed for work involving potentially flammable material. The conventional motor of the hood is replaced by an NEC Division I-rated non-sparking motor, mounted in a cast-iron, explosion-proof housing. In addition, the hood features an explosion-proof light, and all wiring is encased in filled rigid conduit.

These hoods bear an NEC sub-rating: Division I, Class 1 indicates suitability for use where flammable materials are generally present, and Division I, Class 2 indicates suitability for use when such materials are only intermittently present.

Balance Enclosures

Weighing dry powder chemicals is a routine laboratory task. Weighing procedures frequently result in some of the powder becoming airborne irritants – and potentially toxic threats – to lab personnel. Balance enclosures minimize this danger.

They are essentially ductless fume hoods with a few minor modifications. These negative pressure enclosures direct air from outside the hood through a HEPA filtration system before it is returned to the room. The HEPA filtration system is 99.99% effective in removing particles as small as 0.3 microns in diameter from the air, virtually eliminating the risk of personnel exposure. The front sash of the balance enclosure opens upward, allowing easy transfer of balances into and out of the enclosure.

Nanoparticle Enclosures

These enclosures are essentially balance enclosures that use an ULPA filter, which is 99.995% efficient in removing particles as small as 0.12 microns, to contain the much smaller particles generated during nanomaterial processing.

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