Evidence map›Paper›PMID 42790238›Full record

ArticleEnvironment international2026

Portable HEPA air filtration effects on particulate matter, radioactivity, and chemical constituents in occupied homes.

Choong-Min Kang, Joy Lawrence, Shaodan Huang, Jennifer Kang, Jun Young Yoo, Chan Jung Park, Mary B Rice, Wanda Phipatanakul, Eric Garshick, Petros Koutrakis

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Environment international, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Choong-Min KangDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA. Electronic address: cmkang@hsph.harvard.edu.
Joy LawrenceDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA.
Shaodan HuangDepartment of Occupational and Environmental Health Sciences, Peking University, China.
Jennifer KangDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA.
Jun Young YooResearch Division, Coway R&D Center, Seoul 08826, South Korea.
Chan Jung ParkResearch Division, Coway R&D Center, Seoul 08826, South Korea.
Mary B RiceDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA.
Wanda PhipatanakulClinical Research Center, Boston Children's Hospital Asthma, Allergy & Immunology, Dermatology & Rheumatology, Harvard Medical School, Boston, MA 02115, USA.
Eric GarshickPulmonary, Allergy, Sleep, and Critical Care Medicine Section, Medical Service, VA Boston Healthcare System; Harvard Medical School, Boston, MA 02130, USA.
Petros KoutrakisDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA.

Funding

SICAS- Diversity SupplementU01AI110397 · NIAID · BOSTON CHILDREN'S HOSPITAL · PI PHIPATANAKUL, WANDA · 2015 to 2020
$8.8M
Midcareer Investigator Award: Urban School Allergen Exposures and Childhood AsthmK24AI106822 · NIAID · BOSTON CHILDREN'S HOSPITAL · PI PHIPATANAKUL, WANDA · 2013 to 2022
$1.9M
Radon Asthma Intervention Trial (ROME)R01HL179094 · NHLBI · BOSTON CHILDREN'S HOSPITAL · PI PETROS KOUTRAKIS, WANDA PHIPATANAKUL · 2025 to 2026
$1.5M
Retrospective assessment of radon progeny and pollution effects in COPDR21ES029637 · NIEHS · HARVARD MEDICAL SCHOOL · PI GARSHICK, ERIC · 2019 to 2020
$453k
NHLBI NIH HHS R01 HL179094NIAID NIH HHS K24 AI106822NIAID NIH HHS U01 AI110397NIEHS NIH HHS R21 ES029637
6 · The paper itself

Abstract

Although in-home air cleaners are known to reduce particulate matter (PM) concentrations, their effects on PM chemical constituents and particle-bound radioactivity (PR) under real-world residential conditions remain poorly characterized. We evaluated the effects of a portable high-efficiency particulate air (HEPA) cleaner on particle mass, chemical composition, and particle-bound radioactivity in occupied homes. We collected 86 indoor samples from 19 homes in the Boston metropolitan area between June 2017 and March 2018. Measurements included size-resolved PM fractions (PM

Indexed as

HEPA interventionIndoor particulate matterParticle radioactivityReduced health risks

Identifiers

PMID42790238
PMCPMC13670566

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.