phaidra.vetmeduni.ac.at o:2662 DOI 10.3389/fenvs.2023.1218283 Removal of incense smoke and corollary particulate matter using a portable bipolar air ionizer in an unventilated setup Introduction: Indoor air pollution-associated health risk is substantially higher than outdoor. Incense smoke represents a group of multiple hazardous air pollutants including particulate matter. Bipolar air ionizers have been one of the most escalated indoor air cleaning options in recent years. Albeit, removal efficiency against incense smoke and potential byproduct ozone have been little understood due to limited studies.Method: The present study assessed a portable needlepoint technology-based bipolar air ionizer's removal efficacy against incense smoke in unventilated glass boxes (size 0.16 m3). A series of experiments were performed in order to estimate the average efficiency. The total removal efficacy of bipolar air ionizer (BAI eff.) was estimated by using empirical equations of the particulate matter PM2.5 (BAI eff. pm2.5) and PM10 removal (BAI eff.pm10). Particulate matter was used as the marker of incense smoke in this study. The concentration of particulate matter, potential byproduct ozone, relative humidity, and the temperature was monitored by a customized sensor-based air quality monitor.Results: The tested bipolar air ionizer showed a significant decline in incense smoke. The average reduction in PM2.5 and PM10 concentration was observed by 74%-75%. The overall efficacy (BAI eff) against incense smoke particulate proportion was 90% & PLUSMN; 10% compared to the control. Byproduct ozone was not exceeded abnormally. However, the marginal elevation in temperature and humidity (up to 5 & DEG;C or 21%) and humidity (1.8%) were observed when the bipolar air ionizer was conducted.Discussion: Incense smoke consists of multiple hazardous air pollutants including volatile organic compounds and carcinogens. Incense smoke may be the major source of household pollution. A portable bipolar air ionizer could be an auxiliary air cleaning option where incense burning practices are common. eng Health; Ozone; Risks; Pm2.5 2024-02-29T15:39:42.327Z LOMv1.0 Author BEGIN:VCARD VERSION:3.0 N:Gupta;Nishant; FN:Nishant Gupta END:VCARD BEGIN:VCARD VERSION:3.0 N:Patel;Ashish; FN:Ashish Patel END:VCARD BEGIN:VCARD VERSION:3.0 N:Yadav;Virendra Kumar; FN:Virendra Kumar Yadav END:VCARD BEGIN:VCARD VERSION:3.0 N:Kumar;Goklesh; FN:Goklesh Kumar X-ORCID:https://orcid.org/0000-0002-1958-2579 END:VCARD BEGIN:VCARD VERSION:3.0 N:Wanale;Shivraj Gangadhar; FN:Shivraj Gangadhar Wanale END:VCARD BEGIN:VCARD VERSION:3.0 N:Ali;Daoud; FN:Daoud Ali END:VCARD BEGIN:VCARD VERSION:3.0 N:Jindal;Sanjay Kumar; FN:Sanjay Kumar Jindal END:VCARD BEGIN:VCARD VERSION:3.0 N:Agarwal;Ashok Kumar; FN:Ashok Kumar Agarwal END:VCARD BEGIN:VCARD VERSION:3.0 N:Singhal;Rajeev Kumar; FN:Rajeev Kumar Singhal END:VCARD https://w3id.org/kim/hcrt/scheme https://w3id.org/kim/hcrt/text Textdokument Text LOMv1.0 yes https://creativecommons.org/licenses/by/4.0 application/pdf 870994 https://phaidra.vetmeduni.ac.at/o:2662 https://phaidra.vetmeduni.ac.at/api/object/o:2662/thumbnail LOMv1.0 discipline