Functions of Lab Furniture and Fume Hood in Laboratory

Lab furniture and fume hood are necessary in some locations, offering lab operators with comfortable and safe environment to deal with a variety of lab test with corrosive chemicals and toxic fume. Today we would like to discuss functions that lab furniture and fume hood could provide.

1. Lab furniture
Lab furniture is composed of wall lab bench, central lab table,sink laboratory bench, wall mounted cabinet, storage cabninet, safety cabinet，balance table etc.
It’s more and more widely used in fields including universities, hospitals, pharmaceutical enterprises, food processing plants, research institutes, clean room and other fields.
As we know, most of chemical tests are done on laboratory furniture directly including other activities such as reagent bottle washing and chemical storage. So we need to recognize that the function of lab furniture is powerful. It provides not only a suitable and specialized platform for lab operators, but also a clean and comfortable working environment.

2. Fume hood
As the name exhibits effect of ventilation and exhaust. It’s certain that there will be many toxic and harmful gases in the laboratory. If laboratory operators intake these toxic and harmful gases for a long time, then it will cause significant damage to the human body.So in the laboratory, fume hood is essential because it’s capable of exhausting the waste into outside to protect the safety of lab operators. It can be adopted in any labs where frequent polluted air are there. Pls check the following detailed functions:

(1) Exhaust function
The harmful gas produced inside the fume hood should be absorbed by the way of the gas outside the fume cupboard, so that it is diluted and then discharged outdoors.

(2) Non-backflow function
It should have the function of not reversely flowing harmful gases into the room from the inside of the fume hood by the air flow generated by the exhaust fan. In order to ensure the realization of this function, a fume cabinet and a fan with a single pipe connection is the right method. whe connection of single pipe is not workable, it’s only limited to the same floor and the same room, the fan should be as far as possible installed at the end of the pipe (or top of ceiling).

(3) Isolation function
In front of the fume hood, non-sliding glass Windows are used to separate the inside and outside of the fume hood.

(4) Supplementary functions
There shall be channels or alternative devices for air intake from outside the fume hood when harmful gases are discharged.

(5) Control wind speed function
In order to prevent the harmful gases in the fume hood from escaping, it is necessary to have a certain face velocity. The factors that determine the face velocity of the fume cupboard are the heat generated by the experimental content and the relationship with the number of air changes. Among them, the main content of the experiment and the nature of harmful substances. Generally, the general non-toxic pollutants for 0.25-0.38m /s, toxic or dangerous harmful substances for 0.4-0.5m /s, highly toxic or a small amount of radioactivity for 0.5-0.6m /s, gas substance for 0.5m/s, granular substances for 1m/s.

(6) Heat resistance and acid and alkali corrosion resistance
Normally phenolic panel/304 stainless steel/PP/ceramic fibers are used in working chabmer.