The Efficacy of Plant-Based Ionizers in Removing Aerosol for COVID-19 Mitigation

作     者：Ady Suwardi Chin Chun Ooi Dan Daniel Chee Kiang Ivan Tan Hongying Li Ou Yang Zhong Liang Yuanting Karen Tang Jing Yee Chee Anton Sadovoy Shu-Ye Jiang Srinivasan Ramachandran Enyi Ye Chang Wei Kang Wun Chet Davy Cheong Keng Hui Lim Xian Jun Loh Ady Suwardi;Chin Chun Ooi;Dan Daniel;Chee Kiang Ivan Tan;Hongying Li;Ou Yang Zhong Liang;Yuanting Karen Tang;Jing Yee Chee;Anton Sadovoy;Shu-Ye Jiang;Srinivasan Ramachandran;Enyi Ye;Chang Wei Kang;Wun Chet Davy Cheong;Keng Hui Lim;Xian Jun Loh

作者机构：Institute of Materials Research and Engineering2 Fusionopolis WayAgency for ScienceTechnology and ResearchSingapore 138634 Institute of High Performance Computing1 Fusionopolis WayAgency for ScienceTechnology and ResearchSingapore 138632 Temasek Life Sciences Laboratory1 Research LinkNational University of SingaporeSingapore 117604 

出 版 物：《Research》 (研究（英文）)

年 卷 期：2021年第2021卷第1期

页      面：70-80页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：The authors would like to acknowledge funding from“A^(∗)CRUSE project on airflow and aerosol particles studies for public agencies”supported by A^(∗)STAR Singapore(SC25/20-8R1640) 

主　　题：aerosol eliminate sized 

摘      要：Small-sized droplets/aerosol transmission is one of the factors responsible for the spread of COVID-19,in addition to large droplets and surface contamination(fomites).While large droplets and surface contamination can be relatively easier to deal with(i.e.,using mask and proper hygiene measures),aerosol presents a different challenge due to their ability to remain airborne for a long *** calls for mitigation solutions that can rapidly eliminate the airborne ***-COVID-19,air ionizers have been touted as effective tools to eliminate small *** this work,we sought to evaluate the efficacy of a novel plant-based ionizer in eliminating *** was found that factors such as the ion concentration,humidity,and ventilation can drastically affect the efficacy of aerosol *** aerosol removal rate was quantified in terms of ACH(air changes per hour)and CADR-(clean air delivery rate-)equivalent unit,with ACH as high as 12 and CADR as high as 141 ft^(3)/minute being achieved by a plant-based ionizer in a small isolated *** work provides an important and timely guidance on the effective deployment of ionizers in minimizing the risk of COVID-19 spread via airborne aerosol,especially in a poorly-ventilated environment.