Improving the fit of filtering facepiece respirators

Source avec lien : British Dental Journal, En ligne. 10.1038/s41415-022-4512-3

L’objectif de cette étude était d’évaluer l’efficacité et l’acceptabilité de la technologie de cadre personnalisé par smartphone pour améliorer le test ft des masques jetables de classe 3 (FFP3) pour le personnel dentaire qui a échoué précédemment. des respirateurs jetables à masque filtrant de classe 3 (FFP3) pour le personnel dentaire qui n’a pas réussi le test ft.

Abstract Aims To assess the efectiveness and acceptability of smartphone customised frame technology to improve the ft of disposable fltering facepiece class 3 (FFP3) respirators for dental staf who previously failed ft testing. Method In total, 20 volunteers who previously failed FFP3 ft testing were recruited to use smartphone technology (Bellus3D FaceApp) to have a 3D-printed bespoke face frame produced for them. They underwent qualitative ft testing with and without the frame with two freely available disposable FFP3 respirator designs (mask A: GVS F31000 Segre folded model; mask B: Valmy Spireor). The order of testing was random. Ease of use of the smartphone technology and the comfort of the frame were determined by questionnaire. Results Fit test passes increased from 5% without the frame to 70% and 95%, respectively, for masks A and B with the frame (p <0.01). Very few participants reported using the technology as difcult (n = 1/20) or the frame uncomfortable (n = 3/20) or difcult to wear (n = 0/20). Conclusion Customised frames produced using smartphone technology improved qualitative ft test pass rates for two commonly available FFP3 respirators. Using smartphone technology for frame design, wearing a frame and frame comfort levels were all acceptable to the majority of participants. Lisez l’article

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