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High efficiency particulate air (HEPA) filter means a filter that is at least 99.97% efficient in removing monodisperse particles of 0.3 micrometers in diameter. The equivalent NIOSH 42 CFR 84 particulate filters are the N100, R100, and P100 filters.

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May 07, 2012 · Using equation (3.2), the PD was found to be 45 ± 0.9%. This result shows that wearing a facemask under steady-state conditions can reduce inhalation of UFPs by about 45 per cent. In addition, it can be observed that the maximum concentration in the experiment set without a facemask was obviously higher than in the set with a facemask, where ...

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High efficiency particulate air (HEPA) filter means a filter that is at least 99.97% efficient in removing monodisperse particles of 0.3 micrometers in diameter. The equivalent NIOSH 42 CFR 84 particulate filters are the N100, R100, and P100 filters.

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An air-purifying respirator equipped with a filter certified by NIOSH under 30 CFR part 11 as a high efficiency particulate air (HEPA) filter, or an air-purifying respirator equipped with a filter certified for particulates by NIOSH under 42 CFR part 84; or. 1910.134(d)(3)(iv)(C)

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Notes: 1 Employers may select respirators assigned for use in higher workplace concentrations of a hazardous substance for use at lower concentrations of that substance, or when required respirator use is independent of concentration. 2 The assigned protection factors in Table 1 are only effective when the employer implements a continuing, effective respirator program as required by this ...

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[DOC]

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[DOC]

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Only Grade D breathing air shall be used with SAR systems, whether supplied in cylinders, or via Grade D breathing air systems. 6.7.1Penn State locations will coordinate deliveries of breathing air cylinders with the University’s vendor(s) and require them to certify that the air in the cylinders meets the specifications of Grade D breathing ...

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Filter incoming air using central or point-of-use high efficiency particulate (HEPA) filters capable of removing 99.97% of particles ≥0.3 µm in diameter: IB: VI.C.1.b. Direct room airflow with the air supply on one side of the room that moves air across the patient bed and out through an exhaust on the opposite side of the room: IB: VI.C.1.c.

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If there is a fever after a DPaT, it is usually low-grade and appears within the first 48 hours. 4. The child's high fever is a direct response to the DPaT immunization and should be treated.

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