ArticleIndoor air2018
Combined use of an electrostatic precipitator and a high-efficiency particulate air filter in building ventilation systems: Effects on cardiorespiratory health indicators in healthy adults.
Article in Indoor air, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 76 citations in OpenAlex.
- HEPA filtration improves asthma control in children exposed to traffic-related airborne particles.Indoor air · 2020Trial
- Health Benefits of Air Purification: A Systematic Review.Environment & health (Washington, D.C.) · 2026Review
- Portable Low-Cost Sensors for Environmental Monitoring in China: A Comprehensive Review of Application, Challenges, and Opportunities.Sensors (Basel, Switzerland) · 2025Review
- Establishment and application of test methodology demonstrating the functionality of air purification systems in reducing virus-loaded aerosol in indoor air.The Journal of hospital infection · 2023Article
- Wearable Sensor-Based Monitoring of Environmental Exposures and the Associated Health Effects: A Review.Biosensors · 2022Review
- Portable air cleaner use and biomarkers of inflammation: A systematic review and meta-analysis.American heart journal plus : cardiology research and practice · 2022Article
- Effects of Urban Green Space on Cardiovascular and Respiratory Biomarkers in Chinese Adults: Panel Study Using Digital Tracking Devices.JMIR cardio · 2021Article
- Effects of Natural Ventilation and Saliva Standard Ejectors during the COVID-19 Pandemic: A Quantitative Analysis of Aerosol Produced during Dental Procedures.International journal of environmental research and public health · 2021Article
- Field measurements of PMThe Science of the total environment · 2021Article
- Energy consumption of using HEPA-based portable air cleaner in residences: A monitoring study in Seattle, US.Energy and buildings · 2021Article
- Individual- and Household-Level Interventions to Reduce Air Pollution Exposures and Health Risks: a Review of the Recent Literature.Current environmental health reports · 2020Review
- Biomarkers and indoor air quality: A translational research review.Journal of clinical and translational science · 2020Article
- Possible aerosol transmission of COVID-19 and special precautions in dentistry.Journal of Zhejiang University. Science. B · 2020Review
- Exposure to inhalable aerosols and their chemical characteristics from different potential factors in urban office environments.Environmental science and pollution research international · 2019Article
- Effectiveness of a portable air cleaner in removing aerosol particles in homes close to highways.Indoor air · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 7 institutions in 2 countries.
Funding
Abstract
High-efficiency particulate air (HEPA) filtration in combination with an electrostatic precipitator (ESP) can be a cost-effective approach to reducing indoor particulate exposure, but ESPs produce ozone. The health effect of combined ESP-HEPA filtration has not been examined. We conducted an intervention study in 89 volunteers. At baseline, the air-handling units of offices and residences for all subjects were comprised of coarse, ESP, and HEPA filtration. During the 5-week long intervention, the subjects were split into 2 groups, 1 with just the ESP removed and the other with both the ESP and HEPA removed. Each subject was measured for cardiopulmonary risk indicators once at baseline, twice during the intervention, and once 2 weeks after baseline conditions were restored. Measured indoor and outdoor PM
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Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.