Technical Note
Version 1
Preserved in Portico This version is not peer-reviewed
Low-cost Air Purifier Prototype using a Ventilating Fan and Pump against COVID-19 and Haze Pollution
Version 1
: Received: 30 March 2021 / Approved: 1 April 2021 / Online: 1 April 2021 (13:43:51 CEST)
How to cite: Jumlongkul, A. Low-cost Air Purifier Prototype using a Ventilating Fan and Pump against COVID-19 and Haze Pollution. Preprints 2021, 2021040023 (doi: 10.20944/preprints202104.0023.v1). Jumlongkul, A. Low-cost Air Purifier Prototype using a Ventilating Fan and Pump against COVID-19 and Haze Pollution. Preprints 2021, 2021040023 (doi: 10.20944/preprints202104.0023.v1).
Abstract
Purpose: This study aimed to focus on the design and development of low-cost DIY air purifiers, using a ventilating fan, air pump, water pump, and an ultrasonic generator, with regard to filtration efficacy and also cost-effectiveness that can be used during the COVID-19 pandemic and haze pollution. Methods: Six types of household air purifiers, incorporating a HEPA filter, a HEPA filter & electrostatic fiber, an air pump, an air pump & ultrasonic wave, a water pump, and a water pump & ultrasonic wave, were fabricated. The amount of particulate matter (PM) and CO2 levels were recorded at 0, 10, 20, 30, and 60 min, then, repeated 3 times. After 10 min of the 3rd experiment of each study, the last measurement of air pollution would be recorded. Results: At 60 min, the HEPA filter & electrostatic fiber showed the best performance regarding reduction of PM and CO2 levels. The highest PM reduction rate had occurred at 30 min using an air pump procedure (99.330 to 100%). The CO2 levels of all experiments had fluctuated at different times. After 10 min of a closed machine, HEPA filter & electrostatic fiber revealed the highest rate of PM elevation, while PM levels of all water-based purifier systems were decreased. A water pump and air pump were the cheapest air cleaners, when taking into account maintenance expenses and electricity charges. Conclusion: An air pump is the optimum method for reducing particulate matter at minimum cost but without the benefit of reduced humidity, while the HEPA filter & electrostatic fiber is the best system to decrease PM levels, but this requires an enclosed structure at the inlet to prevent dust coming back into the room. As filtration efficiency is increased by the use of filters & electrostatic fiber mechanisms, the more expensive the system becomes.
Keywords
air filtration; air purifier; COVID-19; haze; HEPA filter; particulate matter
Subject
ENGINEERING, Automotive Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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