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All Journal Sainstek Indonesian Journal of Tropical and Infectious Disease The Indonesian Biomedical Journal Nusantara Medical Science Journal Molecular and Cellular Biomedical Sciences (MCBS) Indonesian Contemporary Nursing Journal (ICON Journal) Jurnal Ilmu Alam dan Lingkungan Jurnal Biomedika Indian Journal of Forensic Medicine & Toxicology
Rosdiana Natzir
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Dentistry Earth & Planetary Sciences Education Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Nursing Public Health Veterinary

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A Prototype N95 Sterilizer: An Alternative Solution during Personal Protective Equipment Crisis Azhar, Muh. Aprizal; Natzir, Rosdiana; Sjahril, Rizalinda; Palantei, Elyas; Katu, Sudirman; Hidayah, Najdah; Massi, Muhammad Nasrum
Indonesian Journal of Tropical and Infectious Disease Vol. 10 No. 3 (2022)
Publisher : Institute of Topical Disease Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ijtid.v10i3.37427

Abstract

The high demand for N95 masks, especially during the COVID (Coronavirus disease)-19 pandemic, has caused shortages worldwide. This study aimed to examine the sterilization ability of the portable sterilizer prototype for N95 masks and its effect on the filtration ability and changes in air resistance on the N95 mask in order to thrift personal protective equipment (PPE) use during a shortage. The sample used was an N95 mask type 1860. The mask was contaminated with 0.6-0.8 MFU Staphylococcus aureus and Escherichia coli. The sterilization methods used were Ultraviolet Germicidal Irradiation (UVGI), Heat at 75°C, and a combination of both from 1 to 120 minutes. Next, the masks were cultured in a nutrient agar medium. For aerosol penetration and air resistance tests, masks were tested before and after the sterilization process, lasting from 5 to 60 minutes. This prototype sterilizer with Heat effectively killed E. coli and S. aureus starting from 3 minutes. The filtration ability of the N95 mask was maintained at >95% even after the sterilization process with 75°C heat, UVC, or a combination of both for up to 60 minutes. There was also no significant difference in air resistance between new masks and masks that had been sterilized using a portable sterilizer. This prototype sterilizer with Heat at 75°C can effectively sterilize against both gram-positive and negative bacteria in the N95 mask without reducing the aerosol filtration ability and changing the air resistance of the N95 mask.
Co-Authors A. Jayalangkara Tanra Ade Rifka Junita Ahyar Ahmad Ahyar Ahmad Alfina Baharuddin Ami Febriza Andi Asadul Islam Azhar, Muh. Aprizal Budu - Bukhari, Agussalim Burhanuddin Bahar Burhanuddin Bahar Chyntia Novita Kalalo Elly Lilianty Sjattar Elmiana Bongga Linggi Fatmawati Annisa Syamsuddin Fatmawati Badaruddin Firdaus Hamid Gemini Alam Hidayah, Najdah Ibrahim Labeda Ilhamjaya Patellongi Ilhamuddin Aziz Khairuddin Djawad Kusrini S. Kadar M. Sabir Marcellus Simadibrata Meyke Tiku Pasang Mochammad Hatta Mochammad Hatta Mochammad Hatta Mochammad Hatta Muh. Nasrum Massi Muhammad Reza Primaguna Mushawwir Taiyeb Nuchrawi Nawir Nur Indah Purnamasari Nuralifah Nuralifah, Nuralifah Nurpudji Astuti Tazlim Palantei, Elyas Parawansah Parawansah Parewangi, Muhammad Luthfi Prihantono Prihantono Ressy Dwiyanti Ridwan Ridwan Rina Masadah Rinda Nariswati Riza Linda Sri Manovita Pateda Sri Wahyu Sri Wahyuni Sudirman Katu, Sudirman Tjahjadi Robert Tedjasaputra Yuyun Widaningsih