Interview, observational, and discussion group data at 9 health care organizations (HCOs) were collected to better understand elastomeric half-facepiece respirators' (EHFRs) use. We found that HCOs do not routinely use EHFRs as a respiratory protection device (RPD) for health care workers; compliance with other respirator types was less than expected. This finding has important training implications for proper use of all RPDs and EHFRs as an alternative RPD stockpiled for use during a respiratory infectious outbreak.
