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Research Roundup: Hazard Recognition (AIHce EXP 2022 OnDemand)
Course Description:
Recorded at AIHce EXP 2022

Presentations

Electromagnetic Interference (EMI) survey for an Employee with a Brain-Implanted Hydrocephalus Shunt Valve

The Electromagnetic Interference (EMI) survey and report are with respect to an employee with an implanted Codman Hakim Adjustable HC Shunt Valve. The programmable valve is an implanted device that provides constant intraventricular pressure and drainage of Cerebrospinal fluid (CSF) for the management of hydrocephalus. The affected employee is an office worker. The survey was done in the areas of the facility this employee would be likely to visit.

Developing Ozone Service Life Test Capability for PAPR Filters
US OSHA and other regulatory bodies require cartridge change schedules for gas/vapor cartridges. According to NIOSH, ozone "is used for purifying air and drinking water, in industrial waste treatment, oils, bleaching and waxes, and to make other chemicals." (https://www.cdc.gov/niosh/topics/ozone/) It is also present in welding applications. However, there is no regulatory test method or respirator approval for ozone. Previous research has shown the ability of a disposable particulate respirator with a thin layer of carbon to filter ozone for up to 8 hours at flowrates of 64 LPM. However, some powered air purifying respirators (PAPR) users have asked about filter service life against ozone. PAPRs filters are often considerably larger, with higher air flow rates than breathing through a negative pressure half or full facepiece respirator. This study shows the challenges of developing a robust method for testing PAPR filters against ozone. Resulting service life data may be used to help develop cartridge/filter change schedules.

Presentation Date:
05/25/2022

Presenters:
Peter Aspinall, COH
Stuart Bagley, MS, CIH, CSP
Erik Johnson, CIH, CSP

Session recordings are available for 90 days from purchase.


Stock #: AOD22_L2
ISBN #: 
Author/Editor: 

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