Thursday, October 29, 2009

Ductless Fume Hoods Really Superb!! [watch video ductless fume hoods]

Ductless fume hoods really amazing!!. Just imagine, from about 5 million particles in the working area, ductless fume hoods filtered to "0". Yes, zero. Ductless fume hoods are really efficient and practical product for your laboratory.

Well done to Sentry Air System, Inc. Their product really effective. Watch the video of ductless fume hoods by Sentry Air System from beginning until the end. You will see amazing results produced by this portable fume hoods.

Ductless fume hoods or portable fume hoods by Sentry Air System are using high quality of HEPA filters. It can purify the air up to 99.97% of particles at 0.3 microns in size. From the performance test dated 19th June 2009, by using ductless fume hoods model SS-340-PCR (Portable Clean Room), Sentry Air System managed to prove that their ductless fume hoods is really efficient. Before the test started, the particles in the air recorded at 5.6 millions per cubit foot. Just after 1 minutes operations, it's resulted at zero particles per cubit foot. This is really amazing, if you are using ductless fume hoods for your lab.

Watch the video of ductless fume hoods performance test by the Sentry Air System below:

(This video credited to Sentry Air System, Inc - one of the best manufacturer of ductless fume hoods in the market. Contact them now for more info)

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Monday, October 26, 2009

Ductless Fume Hoods by Esco

In my last article, I have showed you the video of the ductless fume hoods. From the video you can see how the ductless fume hoods works. In this article, I would like to share some information about ductless fume hoods by Esco.

Esco has emerged as a leader in the development of controlled environment, laboratory and cleanroom equipment solutions since 1978. One of the products is ductless fume hoods. Other products that sold in more than 100 countries are biological safety cabinets, fume hoods, laminar flow clean benches, animal containment workstations, cytotoxic cabinets, hospital pharmacy isolators, PCR cabinets, thermal cyclers and instrumentation.

The Esco Airstream Ductless Fume Cabinet or ductless fume hoods is the second generation of their original and most popular ductless fume hoods product. Esco products offering a sensible balance of quality, performance features and cost-effectiveness. Their recirculating design of ductless fume hoods requires no external ducting and exhaust fan.

Ductless fume hoods by Esco not allow gases discharged directly to the environment. All toxic fumes are carbon-filtered by the ductless fume hoods. It will create environmentally friendly. Their ductless fume hoods are using microprocessor-based control / alarm system with US patent pending sensing technology.

Due to the effectiveness of Esco ductless fume hoods or Airstream Ductless Fume Cabinet, Esco technology now is use throughout North America, Europe and Asia. Their product is certified to major Eusopean and American Standards. Esco’s ductless fume hoods comply with International Standards. Esco Airstream Ductless Cabinets have been independently tested and certified by Invent-UK, Ltd to meet and exceed the requirements of US Standard ANSI/ASHRAE 110-1995, British Standard BS 7989 – 2001, British Standard BS 7258, French Standard AFNOR NF X 15-211, French Standard AFNOR NF X 15-203 and European Standard EN14175.3.

Every product of ductless fume hoods produced by Esco’s factory is thoroughly tested to the two major international standards requirements. The International Standards are:

1. BS 7989:2001 Standard for filter efficiency and capacity tests for ductless fume hoodsGaseous phase filter test for capacity and efficiency for the ductless fume hoods is using propan-2-ol according to British Standard 7989:2001. The purpose of this test is to ensure that the re-circulating by ductless fume hoods is capable of meeting the filter capacity requirements specified in 8.5.2 of the BS 7989:2001 Standard. Acceptance criteria: The filter, when challenged continuously at 800ppm (+/-50ppm) of propan-2-ol, shall maintain the concentration of propan-2-ol in the exhaust stream at below 40ppm throughout the period of evaporation of 1 litre of propan-2-ol and below 400ppm throughout the period of evaporation from 1litre to 2litres of propan-2-ol.

2. ASHRAE 110-1995 Standard for containments tests for ductless fume hoods
1. Flow Visualization for local smoke visualization and gross smoke visualization
2. Face Velocity Measurement: Cross Draft Velocity
3. Tracer Gas Test: Static Tracer Gas Test, Surface Scan Test and Sash Movement Effect

Ductless fume hoods by Esco, also knowned as Esco Airstream Ductless Fume Cabinet and Streamline Ductless Fume Cabinet is one of the best ductless fume hoods in the market. Contact them for details information of ductless fume hoods.

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