Local Exhaust Ventilation
ANSI/AAMI ST58 recommends that local exhaust ventilation also be installed at the point of release of glutaraldehyde vapors. The health care facility must ensure that the ventilation system is operating properly and is not obstructed or disturbed by drafts from sources such as fans, supply air diffusers, open windows and doors, and heavily traveled aisles. Local exhaust ventilation located at the level of vapor discharge is the preferred method of reducing glutaraldehyde vapor concentrations because it captures and removes vapor at the source before it can escape into the general work environment. Local exhaust ventilation systems for glutaraldehyde-based activities may include a local exhaust hood (such as a laboratory fume hood) and the associated ductwork and fan; or, a self-contained, freestanding, recirculating exhaust ventilation system (i.e., ductless fume hood).
Transfer Procedures
Reducing the release of glutaraldehyde vapor during transfer operations can be accomplished by the use of automated and enclosed equipment. For example, the transfer of glutaraldehyde from drums into process containers can be automated using pumps and closed transfer lines. Such automated equipment can help employees avoid glutaraldehyde exposure.
Automated Disinfection
The use of automated processing equipment to disinfect instruments can significantly reduce the glutaraldehyde exposures of employees performing disinfection procedures, as well as of other employees and non-employees in the vicinity. However, exposure is still possible, especially when poor work practices are used, or the equipment is poorly designed or improperly installed.
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1-7. How can you significantly reduce exposure to glutaraldehyde when disinfecting instruments?
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