The Effect of Particulate Matter Reduction by Indoor Air Filter Use on Respiratory Symptoms and Lung Function: A Systematic Review and Meta-analysis.

Allergy Asthma Immunol Res · 2021 · PMC8419638 · PMID 34486257

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showed a trendno p-value reported

25 also showed a trend of air filters having significant beneficial effects at 6 months.

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