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Effectiveness of three just-in-time training modalities for N-95 mask fit testing

David Jones, MD, Genevieve Stoler, MD, Joe Suyama, MD


Objective: To compare and contrast three different training modalities for fit testing N-95 respirator face masks.
Design: Block randomized interventional study.
Setting: Urban university.
Participants: Two hundred eighty-nine medical students.
Interventions: Students were randomly assigned to video, lecture, or slide show to evaluate the effectiveness of the methods for fit testing large groups of people.
Main outcome measures: Ease of fit and success of fit for each instructional technique.
Results: Mask 1 was a Kimberly-Clark duckbill N-95 respirator mask, and mask 2 was a 3M™carpenters N-95 respirator mask. “Ease of fit” was defined as the ability to successfully don a mask in less than 30 seconds. “Success of fit” was defined as the ability to correctly don a mask in one try. There were no statistical differences by training modality for either mask regarding ease of fit or success of fit.
Conclusion: There were no differences among video presentation, small group demonstration, and self-directed slide show just-in-time training modalities for ease of fit or success of fit N-95 respirator mask fitting. Further study is needed to explore more effective fit training modalities.


infectious diseases, personal protective equipment, N-95 respirator masks

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Leach A, Haun DE: Deliver the lesson now: Just-in-time training. MLO Med Lab Obs. 2003; 35(7): 42-46.

Nichols AA, Palmer DG: Cross-training in perinatal units. J Perinat Neonatal Nurs. 1994; 8(3): 33-45.

Chotani RA, LaPorte RE, Linkov F, et al.: Just-in-time lectures: SARS. Lancet. 2003; 361(9373): 1996.

Foale CM, Kaleri AY, Sargsyan AE, et al.: Diagnostic instrumentation aboard ISS: Just-in-time training for non-physician crewmembers. Aviat Space Environ Med. 2005; 76(6): 594-598.

Benedek DM, Ritchie EC: “Just-in-time” mental health training and surveillance for the Project HOPE mission. Mil Med. 2006; 171(10 Suppl 1): 63-65.

Kahn CE Jr, Santos A, Thao C, et al.: A presentation system for just-in-time learning in radiology. J Digit Imaging. 2007; 20(1): 6-16.

Kahn CE Jr, Ehlers KC,Wood BP: Radiologists’ preferences for just-in-time learning. J Digit Imaging. 2006; 19(3): 202-206.

Hanley M, Bogdan GM: Project XTREME: Model for Health Professionals’ Cross-Training for Mass Casualty Respiratory Needs -Report. Denver, Colorado, 2007.

Stoler GB, Johnston JR, Stevenson JA, et al.: Preparing emergency personnel in dialysis: A Just-in-Time Training Program for additional staffing during disasters. Disaster Med Public Health Prep. 2013; 7: 272-277.



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