PAPRs are designed
to filter dust, fumes, mists, and/or certain gases and vapors from the
air, depending on the cartridges selected. PAPRs
provide enhanced comfort under working conditions because of the
constant flow of air over the workers' face provides a cooling effect.
Battery operated blowers pull outside air through cartridges and
filters into a hood, helmet or loose or tight fitting facepiece. PAPRs
provide a higher level of protection than disposable respirators.
Health care facilities in some SARS-affected areas have used higher
levels of respiratory protection, including PAPRs.
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