Chapter 6: Maintaining Your Filtered Enclosure

Annually

•Replace the fluorescent lamps. Replace UV lamps if equipped.

•Have the enclosure validated by a qualified certification technician. See Certification and Recertification in Chapter 6.

•All monthly activities.

Decontamination

When used in conjunction with biohazards, the Purifier Class I Enclosure and Purifier HEPA Filtered Enclosure should be decontaminated with formaldehyde gas before:

•maintenance work in contaminated areas

•HEPA filter changes

•moving the cabinet to a new location

•changing research programs

•after a gross spill of biohazardous material

The procedures for performing a gaseous decontamination are thoroughly outlined in the U.S. Department of Health, Education and Welfare booklet entitled Formaldehyde Decontamination of Laminar Flow Biological Safety Cabinets, available from NIH, Division of Safety, Bethesda, MD 20892, call 301-496-2801, or from Labconco Corporation.

Determination of when to Replace

HEPA Filters

The HEPA filters in the filtered enclosures gradually accumulate airborne particulate matter and powders from the enclosure and room. The rate of accumulation will depend upon the cleanliness of the room air, the amount of time the enclosure is operating, and the nature of work being done in the enclosure. In typical installations and usage, the HEPA filters will last two to five years before requiring replacement. Replace HEPA filters when face velocity drops below the recommended 75-105 fpm velocity, and the speed control is adjusted to full speed. Replace HEPA filters if it fails the HEPA Filter Leak Test in Chapter 6.

41

Page 45 Page 47
Page 46
Image 46
Gentek 3980303, 3980423, 3980422, 3980200, 3980401 Decontamination, Determination of when to Replace Hepa Filters, Annually
Page 45 Page 47

3980203, 3980223, 3980402, 3980400, 3980422 specifications

Gentek has established itself as a leading name in the world of electrical and building materials, offering a wide range of products designed to meet the diverse construction and renovation needs. Among its impressive lineup, the model numbers 3980202, 3980323, 3980220, 3980221, and 3980201 have emerged as notable contenders, each boasting specific features that set them apart in the market.

The Gentek 3980202 is particularly acclaimed for its robust construction and exceptional durability. This product is designed with weather-resistant properties, making it suitable for various climates and ensuring that it can withstand harsh environmental conditions. Touted for its ease of installation, the 3980202 features a user-friendly design, allowing both professionals and DIY enthusiasts to utilize it without hassle.

Moving onto the Gentek 3980323, this model takes innovation to the next level with its advanced technological integrations. It incorporates energy-efficient solutions aimed at reducing overall electrical consumption. This model is also compatible with modern smart home systems, allowing users to enhance their homes with ease. The sleek design does not compromise on performance, ensuring that functionality and aesthetics work in harmony.

The Gentek 3980220 and 3980221 share several similarities, focusing on versatility and adaptability. These models are engineered to cater to a wide range of applications, making them ideal for both residential and commercial projects. Their modular designs allow for customization based on specific project requirements, significantly increasing their appeal to contractors and architects. Furthermore, they boast eco-friendly features, contributing to sustainable building practices.

Lastly, the Gentek 3980201 stands out for its affordability without compromising quality. This model offers essential features that meet the fundamental needs of any project, making it an excellent choice for budget-conscious buyers. Despite its economical price point, the 3980201 is crafted with high-grade materials ensuring reliability and longevity.

In summary, Gentek's models 3980202, 3980323, 3980220, 3980221, and 3980201 showcase the company's commitment to quality, innovation, and sustainability. Each model offers unique features tailored to specific needs, ultimately providing contractors, architects, and homeowners with dependable solutions that stand the test of time.
Top Page Image Contents