Biosafety cabinet hepa filter

What is HEPA filter?
It is an acronym for "high efficiency particulate air [filter]" (as officially defined by the U.S.
Dept. of Energy).
This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (\xb5m)..
HEPA filters should be replaced every 3-5 years, depending on cumulative hours of operation, the cleanliness of the lab, and the materials being used in the BSC.
Changing or cleaning the pre-filter on a regular basis extends the life of a HEPA filter.

An essential component in any clean bench or biosafety cabinet is the high efficiency particulate air filter, commonly called a HEPA filter. The HEPA filter removes particulates (generally called aerosols) such as micro-organisms, from the air. The HEPA filter does not remove vapors or gases.

High-efficiency particulate air (HEPA) filters are the main line of defense against contamination used in biosafety cabinet (BSC) technology. HEPA filters remove particles by 3 different mechanisms: impaction, interception, and diffusion.

How does a HEPA filter work?

The downflow air passes through a HEPA filter, preventing biohazard exposure and potential cross-contamination.
A similar process occurs for the exhausted air before environmental release to prevent unnecessary damage and contamination.

What is a biological safety cabinet?

A biological safety cabinet creates inflow and downflow of air that provides operator protection.
The downflow air passes through an ULPA/HEPA filter and creates an ISO Class 3 work zone to protect samples from the risk of cross-contamination.
The air exhausted also passes through an ULPA/HEPA filter prior to release to protect the environment.

What is a Class II B2 biosafety cabinet?

Learn how a total exhaust Class II, Type B2 Biosafety Cabinet protects users from biologicals, volatiles, and radionuclides if permitted by a risk assessment.
Product brochure for NSF/ANSI 49 and EN12469 listed LabGard NU-543 Class II, Type A2 biosafety cabinet from NuAire Lab Equipment.

What is a HEPA filter in a biosafety cabinet?

The HEPA filter in the exhaust system of a biosafety cabinet will effectively trap all known infectious agents and ensure that only microbe-free exhaust air is discharged from the cabinet (i.e., 99.97% of particles 0.3 µm in diameter and 99.99% of particles of greater or smaller size).

Biosafety cabinet hepa filter

What is HEPA filter?

How does a HEPA filter work?

What is a biological safety cabinet?

What is a Class II B2 biosafety cabinet?

What is a HEPA filter in a biosafety cabinet?