Laboratory ductless fume hood is one of the important parts of modern laboratories. In order to prevent laboratory workers from inhaling some toxic, pathogenic or unknown chemicals, laboratories need to use it to ensure the safety of users. To further improve laboratory safety and operational laboratory environment stability, avoid toxic gases and unknown chemical substances polluting the surrounding environment of the laboratory. So how to choose a laboratory ductless fume hood?

    Buying a good laboratory ductless fume hood can achieve twice the result with half the effort. The quality of the equipment is difficult to see from the surface, and it must be judged from its many aspects. We may wish to look at the following points when purchasing.

    (1) Manufacturer selection; first check whether the manufacturer's business license, tax registration certificate, organization code certificate and other documents are complete. If it is not available, it will not be considered. Secondly, the selected manufacturers must comply with international (national) safety certification.

    (2) Function selection: It can ensure that gas, smoke and dust particles do not leak into the indoor air, flammable gases do not accumulate, and explosions will not occur, reducing the occurrence of accidents; it can ensure that when experimenters work in front of the fume hood, they do not Affected by toxic and harmful substances, there is no risk of being scratched by the glass door; the equipment must have low noise to prevent noise pollution and cause unnecessary trouble; the equipment must have a data monitoring function, which can monitor the emission gas data and indoor environmental data online. Temperature and humidity data, more worry-free to use.
 


    (3) Material selection: The material selection of the equipment should be heat-resistant and corrosion-resistant. For example, the best epoxy resin countertops on the market have relatively stable chemical properties, strong corrosion resistance, good impact resistance, no damage, high temperature resistance, integrated core penetration, long service life, no delamination, no expansion, Not cracked. Many demanding laboratories choose fume hoods with this material countertop.

    (4) External dimensions: select the external dimensions according to the experimental content. Too large volume will cause waste, and too small will affect the use. In addition, flexible, convenient and movable is a very good choice, and it is more convenient for laboratory transformation or relocation in the later stage.

    (5) Whether the after-sales service is sound; the filter screen needs to be replaced regularly during the use of the equipment, and certain after-sales support is also required after the equipment fails. Therefore, after-sales service also needs to be considered more. May wish to see if the manufacturer can provide on-site training, installation and commissioning services.

    The above are some purchasing tips for laboratory ductless fume hoods, I hope to help you. In a modern laboratory, advanced scientific instruments, perfect laboratory equipment, and a good experimental environment are favorable conditions for improving the level of science and technology and promoting the success of scientific research. It plays a pivotal role as an important laboratory facility, so it is necessary to carefully select a fume hood that meets various technical indicators. The unit must not unilaterally lower the cost and install substandard equipment. If it causes harm, the consequences will be disastrous.