The benchtop ductless fume hoods are also commonly referred to as the recirculating fume hoods. These are portable and ductless enclosures where the folding sash helps in removing different types of hazardous fumes, toxic vapors and other particles from the lab environment.
The air gets directed towards the filter chamber. This chamber houses different types of filter media like HEPA and Carbon and this is dependent on the exact type of the particulate matter or vapor which gets generated. The different combinations of filtrations are available like two types in carbon filters, one type of HEPA filter and a combination of HEPA and carbon filter.
You will be able to use the standard carbon filters in order to chemically remove the organic vapors by adsorption process. The acid gases, ammonia are specifically targeted in carbon filters. HEPA filters provide 99 percent efficiency in removing particulate matters and are useful with chemical powders and other particulates.
The prime advantage of the Benchtop Ductless Fume Hoods is that they come with a very cheap installation process as there is no special ductwork required and wall penetration can also be ignored. Also another main benefit is that the ductless exhaust hoods are portable and hence they are easily moved from one location to the other within the lab.
Horizontal flow hoods:
The horizontal flow hoods are a part of the laminar flow system. It is also a crucial concept that helps in the control of particulate contamination. The laminar airflow is basically defined as the air which is moving at a constant speed in a constant direction. The air removes all particulate and toxic material and helps to keep the lab environment free from toxicity. The horizontal benchtop flow hoods are also portable and have a simple design. This design ensures that the cleanest areas are the ones nearer to the face of the filter.
In laminar flow hoods there is the question about the direction in which the air should be moving. In the horizontal laminar flow hoods the air flow is from the filtered position which is behind your work surface. You will need to choose a laminar flow hood depending upon several issues like the specific requirements for the clean environment, the location of the process, the design of your work surface; the operator’s safety issues should also be addressed.
The advantages of these benchtop flow hoods:
1. They will reduce a lower the turbulence from the air striking your work surface.
2. There is no sash and hence it will be relatively easier for working and positioning your equipment. But you need to be careful as the air will blow directly towards the face of the operator.
3. The hands and the gloves would not be that contaminated.
For more information, you must search for “benchtop ductless fume hoods” and “horizontal flow clean bench” on the internet. You can also contact us for further query!