When you need a new fume hood, but your laboratory can't actually support adding additional duct system to another traditional duct fume hood, so you need to consider using ductless fume hood to avoid adding additional duct system. The ductless fume hood will also save energy and installation cost, and win-win. Now you want to know-which ductless fume hood is best for your needs? Unfortunately, there are many unique changes in the application of the scientific community, so there is no ductless fume hood suitable for everyone. In order to recommend the best ductless fume hood for the laboratory, it is necessary to summarize the chemical application and the problems that the ductless fume hood should solve.

 

Narrow the selection range
 

Overview of Chemistry Applications: Three important questions need to be answered: Can carbon filter effectively filter chemicals? How many chemicals were used? How often is the fume hood exposed to chemicals? The answers to these questions can greatly reduce the type of fume hood required by your laboratory.

For example, if your application requires boiling acid, the ductless fume hood should not be used at all. If the dosage of some chemicals is too large, or the frequency of use of the chemicals is too high, the filters in the carbon filter fume hood will need to be replaced frequently, so that the cost is very high. For more details, please refer to our article "4 things to consider before choosing ductless fume hood".
 

Evaluation of chemical application
 

By filling in the chemical evaluation requirements, seek expert opinions on the safety and feasibility of the application. Application experts will review your request, and they can solve your application parameters to ensure that all parameters are suitable for use in ductless fume hood. Chemical evaluation forms require detailed information, such as:

1) Chemicals used
2) Chemical contact time
3) How often is it handled every month?
4) Temperature of treatment chemicals
5) Description of the process to be executed

It is important to be as accurate as possible on the chemical evaluation form, because the more information the application experts have, the more accurate their suggestions will be. By avoiding follow-up problems, time will also be saved. When the application experts review your chemical assessment requirements, they will provide suggestions on fume hoods and filters, and any necessary preventive measures to help you make an informed decision on which fume hood to use.