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VOLUME 25 , ISSUE 9 ( September, 2021 ) > List of Articles

Original Article

Fit Factor Change on Quantitative Fit Testing of Duckbill N95 Respirators with the Use of Safety Goggles

Sandy Kyaw, Rimen Lim, Warren C Stewart, Solomon R Thambiraj, David W Collins, Claudia M Whyte

Keywords : Eyeglasses, HCW (Healthcare workers), Infectious diseases, Intensive care, N95 MASK, N95 respirators, Occupational injury, Personal protective equipment, Safety

Citation Information : Kyaw S, Lim R, Stewart WC, Thambiraj SR, Collins DW, Whyte CM. Fit Factor Change on Quantitative Fit Testing of Duckbill N95 Respirators with the Use of Safety Goggles. Indian J Crit Care Med 2021; 25 (9):981-986.

DOI: 10.5005/jp-journals-10071-23972

License: CC BY-NC 4.0

Published Online: 08-09-2021

Copyright Statement:  Copyright © 2021; The Author(s).


Abstract

N95 respirators and safety goggles are important components of personal protective equipment to reduce the spread of airborne infections, such as COVID-19, among healthcare workers. Poor N95 respirator seal may reduce its protective effect, thereby increasing transmission. Quantitative fit testing is an established way of assessing the N95 respirator fit, which provides a quantitative measure for seal, called the fit factor. Duckbill N95 respirators frequently fail the fit test. We hypothesized that using safety goggles with a wraparound elastic headband will increase their fit-factor by reinforcing the seal between the face and the upper margin of the respirator. We studied the effect of safety goggles with a wraparound elastic headband (3M™ Chemical Splash Resistant Goggles, ID 70006982741) on the fit factor of two types of Duckbill N95 respirators (Halyard FLUIDSHIELD*3, Model 99SA070M, and ProShield® N95 Model TN01-11) in 63 healthy volunteers in a nonrandomized, before-and-after intervention study design. The mean fit factor increased from 69.4 to 169.1 increased from 17/63 (27%) to 46/63 (73%) after the intervention (p <0.0001, OR 3 [95% CI = 4.9–1223]). This is the first study to explore the impact of safety goggles on N95 respirator fit. We conclude that the use of safety goggles with a wraparound elastic headband increases the fit factor of the tested Duckbill N95 respirators.

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  1. Haji JY, Subramaniam A, Kumar P, Ramanathan K, Rajamani A. State of personal protective equipment practice in Indian intensive care units amidst COVID-19 pandemic: a nationwide survey. Indian J Crit Care Med 2020;24(9):809–816. DOI: 10.5005/jp-journals-10071-23550.
  2. Chawla G, Abrol N, Kakkar K. Personal protective equipment: a Pandora's box. Indian J Crit Care Med 2020;24(5):371–372. DOI: 10.5005/jp-journals-10071-23443.
  3. Pande RK, Bhalla A, Myatra SN, Yaddanpuddi LN, Gupta S, Sahoo TK, et al. Procedures in COVID-19 patients: part-II. Indian J Crit Care Med 2020;24(Suppl. 5):S272–S279. DOI: 10.5005/jp-journals-10071-23604.
  4. Patel MP, Kute VB, Goswami J, Balwani MR. Hospitals may become “Disease Hotspots” for COVID-19 amid shortage of personal protective equipment. Indian J Crit Care Med 2020;24(11):1145–1146. DOI: 10.5005/jp-journals-10071-23645.
  5. Ramasubban S. COVID collateral: “Don't Forget the Diligent Healthcare Worker”. Indian J Crit Care Med 2020;24(8):613–614. DOI: 10.5005/jp-journals-10071-23542.
  6. Lam SC, Lee JK, Yau SY, Charm CY. Sensitivity and specificity of the user-seal-check in determining the fit of N95 respirators. J Hosp Infect 2011;77(3):252–256. DOI: 10.1016/j.jhin.2010.09.034.
  7. Derrick JL, Chan YF, Gomersall CD, Lui SF. Predictive value of the user seal check in determining half-face respirator fit. J Hosp Infect 2005;59(2):152–155. DOI: 10.1016/j.jhin.2004.09.009.
  8. Regli A, Sommerfield A, von Ungern-Sternberg BS. The role of fit testing N95/FFP2/FFP3 masks: a narrative review. Anaesthesia 2021;76(1):91–100. DOI: 10.1111/anae.15261.
  9. Hon CY, Danyluk Q, Bryce E, Janssen B, Neudorf M, Yassi A, et al. Comparison of qualitative and quantitative fit-testing results for three commonly used respirators in the healthcare sector. J Occup Environ Hyg 2017;14(3):175–179. DOI: 10.1080/15459624.2016.1237030.
  10. Degesys NF, Wang RC, Kwan E, Fahimi J, Noble JA, Raven MC. Correlation between N95 extended use and reuse and fit failure in an emergency department. JAMA 2020;324(1):94–96. DOI: 10.1001/jama.2020.9843.
  11. Roberge RJ, Monaghan WD, Palmiero AJ, Shaffer R, Bergman MS. Infrared imaging for leak detection of N95 filtering facepiece respirators: a pilot study. Am J Ind Med 2011;54(8):628–636. DOI: 10.1002/ajim.20970.
  12. Harber P, Su J, Badilla AD, Rahimian R, Lansey KR. Potential role of infrared imaging for detecting facial seal leaks in filtering facepiece respirator users. J Occup Environ Hyg 2015;12(6):369–375. DOI: 10.1080/15459624.2015.1006636.
  13. Chu DK, Akl EA, Duda S, Solo K, Yaacoub S, Schunemann HJ. Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis. Lancet 2020;395(10242):1973–1987. DOI: 10.1016/S0140-6736(20)31142-9.
  14. Sharma J, Nasa P, Reddy KS, Kuragayala SD, Sahi S, Gopal P, et al. Infection prevention and control for ICU during COVID-19 pandemic: position paper of the Indian Society of Critical Care Medicine. Indian J Crit Care Med 2020;24(Suppl. 5):S280–S289. DOI: 10.5005/jp-journals-10071-23607.
  15. Pande RK, Bhalla A, Myatra SN, Yaddanpuddi LN, Gupta S, Sahoo TK, et al. Procedures in COVID-19 patients: part-I. Indian J Crit Care Med 2020;24(Suppl. 5):S263–S271. DOI: 10.5005/jp-journals-10071-23597.
  16. NIOSH-approved N95 particulate filtering facepiece respirators: National Institute for Occupational Safety and Health; 2020. Available from: https://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/N95list1-h.html.
  17. Incorporated T. PORTACOUNT® PRO 8030 AND PORTACOUNT® PRO+ 8038 RESPIRATOR FIT TESTERS Revision P ed. TSI Incorporated/500 Cardigan Road/Shoreview, MN 55126/USA; 2015. p. 87–89.
  18. OSHA. Major requirement of OSHA's respiratory protection standard 29 CFR 1910.134. 2006.
  19. PORTACOUNT RESPIRATOR FIT TESTER 8048. 2021. Available from: https://www.tsi.com/products/respirator-fit-testers/portacount-respirator-fit-tester-8048/.
  20. Clayton M, Vaughan N. Fit for purpose? The role of fit testing in respiratory protection. Ann Occup Hyg 2005;49(7):545–548. DOI: 10.1093/annhyg/mei046.
  21. Amemiya T. Tobit models: a survey. J Econom 1984;24(1):3–61. DOI: 10.1016/0304-4076(84)90074-5.
  22. Lee K, Slavcev A, Nicas M. Respiratory protection against Mycobacterium tuberculosis: quantitative fit test outcomes for five type N95 filtering-facepiece respirators. J Occup Environ Hyg 2004;1(1):22–28. DOI: 10.1080/15459620490250026.
  23. Ciotti C, Pellissier G, Rabaud C, Lucet JC, Abiteboul D, Bouvet E. Effectiveness of respirator masks for healthcare workers, in France. Med Mal Infect 2012;42(6):264–269. DOI: 10.1016/j.medmal.2012.05.001.
  24. Wardhan R, Brennan MM, Brown HL, Creech TB. Does a modified adhesive respirator improve the face seal for health care workers who previously failed a fit test?: a pilot study during the coronavirus disease 2019 pandemic. A A Pract 2020;14(8):e01264. DOI: 10.1213/XAA.0000000000001264.
  25. Australian and New Zealand Intensive Care Society (2020) ANZICS COVID-19 guidelines. Melbourne: ANZICS; 2021.
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