Should I buy a biological safety cabinet or a laminar flow hood?
Laminar flow hoods only provide the protection for test specimen, but the operator and environment. Biological safety cabinet can provide the protection for operator, environment, and test specimen simultaneously. So, from the objects needs to be protected, you can understand what kind of machine is applicable to you.
※ Special remind: horizontal or vertical laminar flow hoods are not biological safety cabinet, so can not be used in operation with biological hazard.