['Personal Protective Equipment']

['Respiratory Protection']

01/17/2024

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How can an employer determine if the mass median aerodynamic diameter (MMAD) of a contaminant is less than 2 micrometers?

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How can an employer determine if the mass median aerodynamic diameter (MMAD) of a contaminant is less than 2 micrometers?

RegSense Personal Protective Equipment Safety & Health Construction Safety General Industry Safety Best Results FAQ Respiratory Protection English Focus Area USA

Ranges of MMAD for various processes have been reported in published articles. It also is possible to determine ranges through testing. If the MMAD cannot be determined, a HEPA filter, or a filter certified for particulates by NIOSH under 42 CFR part 84 (N95 or higher) must be selected.

['Personal Protective Equipment']

['Respiratory Protection']

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