Evaluating Indoor Air Quality Monitoring Devices for Healthy Homes

In light of COVID-19, people are increasingly anxious about indoor air quality data in places where they live and work. Access to this data using a consumer-grade air quality monitor has become a way of giving agency to building users so that they can understand the ventilation effectiveness of the...

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Main Authors: Terri Peters, Cheng Zhen
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/14/1/102
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author Terri Peters
Cheng Zhen
author_facet Terri Peters
Cheng Zhen
author_sort Terri Peters
collection DOAJ
description In light of COVID-19, people are increasingly anxious about indoor air quality data in places where they live and work. Access to this data using a consumer-grade air quality monitor has become a way of giving agency to building users so that they can understand the ventilation effectiveness of the spaces where they spend their time. Methods: Fourteen low-cost, air quality devices marketed to consumers were tested (seven types, two of each product): AirBird, Airthings View Plus, Aranet4 Home, Awair Omni, Eve Room, Laser Egg + CO<sub>2</sub>, and Purple Air PA-1. The study focus was accuracy and useability using three methods: a low-cost laboratory setting to test accuracy for CO<sub>2</sub>; a comparison to a calibrated, research grade meter for particulate matter (PM2.5), temperature, and relative humidity; and short-term field testing in a residential environment to understand the quality of feedback given to users. Results: Relating to accuracy, all devices were within acceptable ranges for temperature, relative humidity, and CO<sub>2</sub>, and only one brand’s results met the accuracy threshold with the research grade monitor when testing PM2.5. In terms of usability, a significant variation in response time and data visualization was found on the devices or in the smartphone applications. Conclusions: While accuracy in IAQ data is important, in low-cost air quality devices marketed to consumers it is just as important that the data be presented in a way that can be used to empower people to make decisions and modify their indoor environment. We concluded that response time, user-interface, data sharing, and visualization are important parameters that may be overlooked if a study just focuses on accuracy. The design of the device, including its appearance, size, portability, screen brightness, and sound or light warning, must also be considered. The act of measuring is important, and more studies should focus on how users interpret and react to building performance data.
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spelling doaj.art-ac273f48759f4298bacb47a0bfb5e2b22024-01-29T13:48:39ZengMDPI AGBuildings2075-53092023-12-0114110210.3390/buildings14010102Evaluating Indoor Air Quality Monitoring Devices for Healthy HomesTerri Peters0Cheng Zhen1Department of Architectural Science, Toronto Metropolitan University, Toronto, ON M5B 2K3, CanadaDepartment of Architectural Science, Toronto Metropolitan University, Toronto, ON M5B 2K3, CanadaIn light of COVID-19, people are increasingly anxious about indoor air quality data in places where they live and work. Access to this data using a consumer-grade air quality monitor has become a way of giving agency to building users so that they can understand the ventilation effectiveness of the spaces where they spend their time. Methods: Fourteen low-cost, air quality devices marketed to consumers were tested (seven types, two of each product): AirBird, Airthings View Plus, Aranet4 Home, Awair Omni, Eve Room, Laser Egg + CO<sub>2</sub>, and Purple Air PA-1. The study focus was accuracy and useability using three methods: a low-cost laboratory setting to test accuracy for CO<sub>2</sub>; a comparison to a calibrated, research grade meter for particulate matter (PM2.5), temperature, and relative humidity; and short-term field testing in a residential environment to understand the quality of feedback given to users. Results: Relating to accuracy, all devices were within acceptable ranges for temperature, relative humidity, and CO<sub>2</sub>, and only one brand’s results met the accuracy threshold with the research grade monitor when testing PM2.5. In terms of usability, a significant variation in response time and data visualization was found on the devices or in the smartphone applications. Conclusions: While accuracy in IAQ data is important, in low-cost air quality devices marketed to consumers it is just as important that the data be presented in a way that can be used to empower people to make decisions and modify their indoor environment. We concluded that response time, user-interface, data sharing, and visualization are important parameters that may be overlooked if a study just focuses on accuracy. The design of the device, including its appearance, size, portability, screen brightness, and sound or light warning, must also be considered. The act of measuring is important, and more studies should focus on how users interpret and react to building performance data.https://www.mdpi.com/2075-5309/14/1/102indoor air qualityhealthy buildingsmonitoringlow-cost sensorsair quality monitoring
spellingShingle Terri Peters
Cheng Zhen
Evaluating Indoor Air Quality Monitoring Devices for Healthy Homes
Buildings
indoor air quality
healthy buildings
monitoring
low-cost sensors
air quality monitoring
title Evaluating Indoor Air Quality Monitoring Devices for Healthy Homes
title_full Evaluating Indoor Air Quality Monitoring Devices for Healthy Homes
title_fullStr Evaluating Indoor Air Quality Monitoring Devices for Healthy Homes
title_full_unstemmed Evaluating Indoor Air Quality Monitoring Devices for Healthy Homes
title_short Evaluating Indoor Air Quality Monitoring Devices for Healthy Homes
title_sort evaluating indoor air quality monitoring devices for healthy homes
topic indoor air quality
healthy buildings
monitoring
low-cost sensors
air quality monitoring
url https://www.mdpi.com/2075-5309/14/1/102
work_keys_str_mv AT terripeters evaluatingindoorairqualitymonitoringdevicesforhealthyhomes
AT chengzhen evaluatingindoorairqualitymonitoringdevicesforhealthyhomes