Evidence map›Paper›PMID 32058675›Full record

Trial reportClinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery2020

Efficacy of indoor air purification in the treatment of Artemisia pollen-allergic rhinitis: A randomised, double-blind, clinical controlled trial.

Li Li, Li Zhang, Jin-Han Mo, Yun-Ying Li, Ji-Yan Xia, Xiao-Bing Bai, Pei-Fang Xie, Jing-Yi Liang, Zi-Feng Yang, Qiao-Yan Chen

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 29 citations in OpenAlex.

  1. Efficacy of indoor air purification in the treatment of Artemisia pollen-allergic rhinitis: A randomised, double-blind, clinical controlled trial.Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery · 2020
    Trial
  2. Health Benefits of Air Purification: A Systematic Review.Environment & health (Washington, D.C.) · 2026
    Review
  3. Article
  4. Article
  5. The Impact of Home Interventions on Dry Eye Disease (DED) Symptoms and Signs in United States Veterans.International journal of environmental research and public health · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Spatial distribution of histamine in bed bug-infested homes.The Science of the total environment · 2023
    Article
  10. Article
  11. Article
  12. Review
  13. 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

10 authors at 6 institutions in 2 countries.

Li LiThe First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, Yan'an, China.
Li ZhangThe First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, Yan'an, China.
Jin-Han MoBeijing Key Laboratory of Indoor Air Quality Evaluation and Control, Tsinghua University, Beijing, China.
Yun-Ying LiGuangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
Ji-Yan XiaGuangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
Xiao-Bing BaiThe First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, Yan'an, China.
Pei-Fang XieState Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
Jing-Yi LiangState Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
Zi-Feng YangState Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
Qiao-Yan ChenGuangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
Guangzhou University of Chinese Medicine · CNYanan University Affiliated Hospital · CNFirst Affiliated Hospital of Guangzhou Medical University · CNGuangzhou Medical University · CNState Key Laboratory of Respiratory Disease · CNTsinghua University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate the clinical efficacy of a high-efficiency air purifier in patients with allergic rhinitis.

designWe conducted a randomised, double-blind, clinical controlled trial with active and inactive versions of an air purifier. Our study included patients with allergic rhinitis who were sensitive to Artemisia pollen and treatment of the indoor environment using air filtration at night. We evaluated the clinical efficacy of indoor air filtration during the Artemisia pollen scattering season in Yulin City in Shanxi Province, China.

settingThe First Hospital of Yulin (Yulin City, Shanxi Province, China).

participantsA total of 90 patients with allergic rhinitis who were sensitive to allergens of Artemisia pollen were randomly assigned to one of two groups in equal numbers.

main outcome measuresThe primary outcome measure was the difference in visual analogue scale scores from baseline. Secondary outcomes were changes from baseline in nasal symptoms, allergy symptom scores, responses to the Rhinoconjunctivitis Quality of Life Questionnaire, Epworth Sleepiness Scale scores and tolerability scores for the air purifier.

resultsBased on the allergy symptom score, we found significant differences in rhinitis symptoms between the groups who used the active versus the inactive air purifier.

conclusionsThe results of our investigation demonstrated the health benefits of particle filtration.

Indexed as

Air FiltersArtemisiaAdultAir Pollution, IndoorDouble-Blind MethodFemaleHumansMaleMiddle AgedPollenRhinitis, AllergicTreatment Outcomeallergyquality of liferandomised controlled trialsrhinitissleep

Identifiers

PMID32058675
PMCPMC7317381
OpenAlexW3006042386

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.