The difference and principle of biosafety cabinet, fume hood and laminar flow cabinet

1. Fume hood

Protect the person, not the sample

Working principle: water, electricity, gas, ventilation one system, equipped with multifunctional power socket, easy to use other electrical equipment in the laboratory process. The quick-opening valve is used to facilitate the use of water during the experiment. The front stop plate is a glass door that can be moved up and down, and the top is a low-speed fan. The harmful gases can be discharged smoothly during the experiment.

2. clean bench

Ultra clean table can only protect the sample, not the operator

The air is inhaled by the fan, filtered by the filter through the static pressure box, and the filtered clean air is sent out in the state of vertical or horizontal air flow, so that the operation area can continuously reach 100 levels of cleanliness under the control of clean air, to ensure the production of environmental cleanliness requirements.

3. Biological safety cabinet

Biosafety cabinets not only protect the sample but also protect the operator, hence the name "safety" cabinet.
It is a negative pressure filter exhaust cabinet, which is used for biosafety protection in biosafety laboratories and other laboratories. It can prevent operators and the environment from being exposed to bioaerosols produced in the process of experiments. To provide safety protection for operators, samples and cross-contamination between samples and the environment.