Biological safety cabinet

Details Biological safety cabinet Biological safety cabinet

2006-03-21

2006-03-21

Pham, Minh-Chau T. (Department: 1724)

Gas separation

Combined or convertible

In environmental air enclosure

C055S356000, C055S467000, C055S496000, C055S505000, C055S506000, C055S508000, C055SDIG018, C454S187000

Reexamination Certificate

active

07014674

ABSTRACT:
A biological safety cabinet includes a work chamber having a contaminated air discharge opening, a fan enclosure above the work chamber, a conduit extending from the chamber air outlet to the top of the fan enclosure, a first HEPA filter in the top of the fan enclosure, a second HEPA filter between the fan enclosure and the work chamber, and a fan within the fan enclosure to convey air through the conduit from and the first HEPA filter into the fan enclosure, and to discharge air under positive pressure from the fan enclosure through the exhaust port and through the second HEPA filter into the work chamber. Due to the construction of the cabinet, the fan can be repaired or replaced without the need to observe biohazard procedures.

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