Experiences when using different EHMR models: Implications for different designs and meeting user expectations.

Area of Science:

• Occupational Health
• Respiratory Protection
• Medical Device Evaluation

Background:

• New elastomeric half-mask respirators (EHMRs) without exhalation valves (EVs) or with exhalation valve filters (EVFs) are increasingly used in healthcare for worker protection and source control.
• Physical comfort of these novel EHMR models compared to traditional EHMRs with EVs has not been previously assessed.

Purpose of the Study:

• To compare the physical comfort and adverse experiences of healthcare personnel wearing EHMRs with EVs versus EHMRs without EVs or with EVFs.

Main Methods:

• A study involving 1,962 healthcare and emergency medical service personnel was conducted.
• Two cohorts were assessed: Cohort 1 (n=1,080) wore EHMRs with EVs, and Cohort 2 (n=882) wore EHMRs without EVs or with EVFs.
• Self-reported adverse experiences were collected and analyzed using Fisher exact test.

Main Results:

• Cohort 1 reported significantly more communication challenges and discomfort after 1 hour of use.
• Cohort 2 reported significantly more difficulty breathing, moisture buildup, discomfort within 1 hour, and feeling uncomfortably warm.

Conclusions:

• Discomfort is common among EHMR users, particularly with models lacking EVs or having EVFs.
• As EHMR technology advances, increased use in various settings is anticipated.
• Organizations require guidance on selecting appropriate EHMR models based on specific needs and user experiences.