Evidence map›Paper›PMID 24555523›Full record

ArticleThe Journal of asthma : official journal of the Association for the Care of Asthma2014

Reducing patients' exposures to asthma and allergy triggers in their homes: an evaluation of effectiveness of grades of forced air ventilation filters.

Kathleen Ward Brown, Taeko Minegishi, Joseph G Allen, John F McCarthy, John D Spengler, David L MacIntosh

Open access · greenAbstract read
In one paragraph

Article in The Journal of asthma : official journal of the Association for the Care of Asthma, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.9field-weighted citation impact, top 9% of its field
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

12 citing papers in PubMed, 39 citations in OpenAlex.

  1. Trial
  2. Article
  3. Minimizing Indoor Allergen Exposure: What Works?Current allergy and asthma reports · 2024
    Review
  4. Article
  5. Environmental Exposures Impact Pediatric Asthma Within the School Environment.Immunology and allergy clinics of North America · 2022
    Review
  6. Article
  7. Article
  8. Does Air Filtration Work for Cat Allergen Exposure?Current allergy and asthma reports · 2020
    Review
  9. Review
  10. Article
  11. Article
  12. Article
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

6 authors at 3 institutions in 1 country.

Kathleen Ward BrownEnvironmental Health & Engineering, Inc. , Needham, MA , USA and.
Taeko Minegishi
Joseph G Allen
John F McCarthy
John D Spengler
David L MacIntosh
Harvard University · USRenewable Energy Systems (United States) · USMassachusetts Department of Public Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveMany interventions to reduce allergen levels in the home are recommended to asthma and allergy patients. One that is readily available and can be highly effective is the use of high performing filters in forced air ventilation systems.

methodsWe conducted a modeling analysis of the effectiveness of filter-based interventions in the home to reduce airborne asthma and allergy triggers. This work used "each pass removal efficiency" applied to health-relevant size fractions of particles to assess filter performance. We assessed effectiveness for key allergy and asthma triggers based on applicable particle sizes for cat allergen, indoor and outdoor sources of particles <2.5 µm in diameter (PM2.5), and airborne influenza and rhinovirus.

resultsOur analysis finds that higher performing filters can have significant impacts on indoor particle pollutant levels. Filters with removal efficiencies of >70% for cat dander particles, fine particulate matter (PM2.5) and respiratory virus can lower concentrations of those asthma triggers and allergens in indoor air of the home by >50%. Very high removal efficiency filters, such as those rated a 16 on the nationally recognized Minimum Efficiency Removal Value (MERV) rating system, tend to be only marginally more effective than MERV12 or 13 rated filters.

conclusionsThe results of this analysis indicate that use of a MERV12 or higher performing air filter in home ventilation systems can effectively reduce indoor levels of these common asthma and allergy triggers. These reductions in airborne allergens in turn may help reduce allergy and asthma symptoms, especially if employed in conjunction with other environmental management measures recommended for allergy and asthma patients.

Indexed as

Air FiltersVentilationAir Pollution, IndoorAllergensAnimalsAsthmaCatsEnvironmental ExposureEnvironmental MonitoringHumansParticulate MatterVirusesAllergensParticulate MatterAsthma and allergy triggersfiltrationindoor airparticulatePM2.5

Identifiers

PMID24555523
PMCPMC4133967
OpenAlexW2096476780

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.