ArticleInternational journal of environmental research and public health2021
The Impact of Large Mobile Air Purifiers on Aerosol Concentration in Classrooms and the Reduction of Airborne Transmission of SARS-CoV-2.
Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
What it found
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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
23 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Managing infectious aerosols to counter engineered pandemics: Current recommendations and future research.Risk analysis : an official publication of the Society for Risk Analysis · 2025Guideline
- Trial
- Evaluating air cleaner effectiveness in schools: a comprehensive review and protocol of a cluster-randomized controlled trial of physicochemical and microbial markers.Frontiers in public health · 2026Review
- Effectiveness of enhanced filtration interventions for improving indoor air quality in child-serving facilities.Frontiers in pediatrics · 2026Article
- Article
- An interdisciplinary perspective of the built-environment microbiome.FEMS microbiology ecology · 2025Review
- Evaluation of the decontamination efficacy of a portable air cleaner using 275-nm UVC-LED radiation against airborne Coronavirus and Influenza virus.GMS hygiene and infection control · 2025Article
- Unintended consequences of measures implemented in the school setting to contain the COVID-19 pandemic: a scoping review.The Cochrane database of systematic reviews · 2024Article
- Reduction by air purifier of particulate concentration during orthodontic procedures: a pilot study.BMC oral health · 2024Article
- How teacher behaviors and perceptions, air change rates, and portable air purifiers affect indoor air quality in naturally ventilated schools.Frontiers in public health · 2024Article
- SARS-CoV-2 transmission with and without mask wearing or air cleaners in schools in Switzerland: A modeling study of epidemiological, environmental, and molecular data.PLoS medicine · 2023Article
- A review on indoor airborne transmission of COVID-19- modelling and mitigation approaches.Journal of building engineering · 2023Review
- Systematic Review of the Key Factors Influencing the Indoor Airborne Spread of SARS-CoV-2.Pathogens (Basel, Switzerland) · 2023Review
- The Influence of Ventilation Measures on the Airborne Risk of Infection in Schools: A Scoping Review.International journal of environmental research and public health · 2023Article
- Efficacy of Do-It-Yourself air filtration units in reducing exposure to simulated respiratory aerosols.Building and environment · 2023Article
- Combining Phi6 as a surrogate virus and computational large-eddy simulations to study airborne transmission of SARS-CoV-2 in a restaurant.Indoor air · 2022Article
- Article
- Can 10× cheaper, lower-efficiency particulate air filters and box fans complement High-Efficiency Particulate Air (HEPA) purifiers to help control the COVID-19 pandemic?The Science of the total environment · 2022Article
- Ventilation strategies to reduce airborne transmission of viruses in classrooms: A systematic review of scientific literature.Building and environment · 2022Review
- A review of facilities management interventions to mitigate respiratory infections in existing buildings.Building and environment · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the wake of the COVID-19 pandemic, an increased risk of infection by virus-containing aerosols indoors is assumed. Especially in schools, the duration of stay is long and the number of people in the rooms is large, increasing the risk of infection. This problem particularly affects schools without pre-installed ventilation systems that are equipped with filters and/or operate with fresh air. Here, the aerosol concentration is reduced by natural ventilation. In this context, we are investigating the effect of large mobile air purifiers (AP) with HEPA filters on particle concentration and their suitability for classroom use in a primary school in Germany. The three tested APs differ significantly in their air outlet characteristics. Measurements of the number of particles, the particle size distribution, and the CO
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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.