Nowadays, laboratory hoods are among the most important equipment suitable for laboratory places, which, with the help of a suction system, disinfect the air flow and free it from any small and suspended particles, and always protect the laboratory environment, operators and laboratory personnel from Factors such as acid vapors, microbial and chemical factors, etc. Currently, these hoods are available in different types of chemical hoods , microbial (laminar) hoods, and arm hoods. In this article, we are trying to examine each one, the difference between a microbial hood and a chemical hood , as well as the difference between a laminar and microbial hood. express

Chemical hood

Chemical hoods are one of the laboratory equipment suitable for chemical environments, which cause the transfer of gases and vapors caused by the consumption of chemicals and solvents to the outside space.

In fact, these hoods prevent toxic and polluted vapors from entering the laboratory environment due to their housing, and the emitted vapors and gases are directed to the outside environment through the installed channels and centrifugal fan.

Microbial hood or laminar hood

Microbial hood or laminar hood is suitable equipment for biological laboratories, which is always used to protect samples in laboratory environments and culture rooms. In fact, this model of hoods prevents the release of organic factors to the external environments of the laboratory and purifies the air of the laboratory by airing all the suspended particles in the air.

The difference between a microbial hood and a chemical hood

Today, the difference between a microbial hood and a chemical hood has made each person prepare the desired hood according to their needs and laboratory conditions.

Differences in application 

One of the main differences between a microbial hood and a chemical hood is how they are used in laboratory environments. In this way, microbial (laminar) hoods are suitable for the environment and work related to microbial culture , fungi and bacteria, and by sterilizing the air with the help of filters used in the hood structure, they direct the ventilated air flow back to the work surface. ; While chemical hoods are used in chemical environments and laboratories to protect operators from working with chemicals.

Difference in performance

Another difference between a laminar hood and a chemical hood is the functional principles and duties of each of them.

In fact, chemical hoods have the task of removing chemicals from laboratory environments or absorbing chemical gases through discharge channels, while microbial hoods prevent and protect organic conditions and factors with the help of HEPA and ULPA filters. which should not be used against dangerous and toxic substances at all.

The difference in the types and models of chemical hoods and microbial hoods

Another difference between a microbial hood and a chemical hood is the variety and difference in the models of these two devices.

In such a way that chemical hoods are generally sold in two models with channels and without channels, and laminar hoods in two models with horizontal and vertical air flow in the market, each of which has its own characteristics.