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Diakses pada November 2020EPA. https://www.epa.gov/indoor-air-quality-iaq/what-hepa-filter-1
Diakses pada November 2020Bobvila. https://www.bobvila.com/articles/hepa-filters/
Diakses pada November 2020Web MD. https://www.webmd.com/allergies/hepa-filters-for-allergies
Diakses pada November 2020New York Times. https://www.nytimes.com/wirecutter/blog/can-hepa-air-purifiers-capture-coronavirus/
Diakses pada November 2020