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Comparison of different N95 styles on fit testing in an Australian healthcare setting during the COVID-19 pandemic

Head to head comparison of different N95 styles on quantitative fit testing in Australian healthcare workers during the COVID-19 pandemic

Status
Completed
Phases
Unknown
Study type
Observational
Source
ANZCTR
Registry ID
ACTRN12621000388819
Enrollment
145
Registered
2021-04-08
Start date
2021-07-02
Completion date
2021-09-07
Last updated
2022-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Healthcare workers are sometimes required to wear N95 respirators as part of their clinical duties. In Australia, there are many different brands and styles of N95 respirators. It is unclear if certain styles of N95 respirators (e.g. cup style, fold style) are more likely to fit a greater proportion of Australian healthcare workers. This study intends to find out the pass rate of different styles of N95 respirators using quantitative fit testing. We will also assess the ease of donning and doffing the respirator as well as the comfort of wearing each respirator. Data on age, weight, gender, ethnicity and facial characteristics will also be collected to see if this correlates with ability to pass fit testing. This will allow healthcare settings to stock the styles of N95 respirators that are more likely to fit Australian healthcare workers.

Interventions

Each healthcare worker will be sequentially tested on 4 N95 respirators in random order. The respirators included are: BSN Medical ProShield (duckbill style), 3M Aura (three panel style), 3M 1860 (cup style), BYD N95 (fold style). Testing will be conducted with a PortaCount machine using the modified OSHA protocol. No washout period is required between testing different respirators. The participant will then assess the ease of donning and doffing at the conclusion of fit testing. The participa

Each healthcare worker will be sequentially tested on 4 N95 respirators in random order. The respirators included are: BSN Medical ProShield (duckbill style), 3M Aura (three panel style), 3M 1860 (cup style), BYD N95 (fold style). Testing will be conducted with a PortaCount machine using the modified OSHA protocol. No washout period is required between testing different respirators. The participant will then assess the ease of donning and doffing at the conclusion of fit testing. The participant will be instructed to wear each respirator for 30 minutes and then assess the comfort of the respirator. The questionnaires will be in the form of a numerical rating scale. Prior to commencing fit testing, data on age, gender, BMI, ethnicity and facial anthropometry (Menton-Sellion length and bizygomatic breadth) will be collected.

Sponsors

Department of Anaesthesia, Box Hill Hospital, Eastern Health
Lead SponsorHospital

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Healthcare workers who may be required to wear N95 respirator at work Gives informed consent

Exclusion criteria

Healthcare workers who would not usually wear a N95 respirator Does not consent

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026