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Free Air Purifiers for Early Childhood Education Centers and Schools! | Department of Public Health | City of Philadelphia
![Can 10× cheaper, lower-efficiency particulate air filters and box fans complement High-Efficiency Particulate Air (HEPA) purifiers to help control the COVID-19 pandemic? - ScienceDirect Can 10× cheaper, lower-efficiency particulate air filters and box fans complement High-Efficiency Particulate Air (HEPA) purifiers to help control the COVID-19 pandemic? - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0048969722029813-ga1.jpg)
Can 10× cheaper, lower-efficiency particulate air filters and box fans complement High-Efficiency Particulate Air (HEPA) purifiers to help control the COVID-19 pandemic? - ScienceDirect
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Instant HEPA Air Purifier with Multiple Quiet Fan Speeds, Clean Air Coverage up to 1140 sqft, Removes 99% of Dust, Smoke, Odors, Pollen & Pet Hair, Charcoal - Walmart.com
![We should install air purifiers with HEPA filters in every classroom. It could help with COVID, bushfire smoke and asthma We should install air purifiers with HEPA filters in every classroom. It could help with COVID, bushfire smoke and asthma](https://images.theconversation.com/files/416670/original/file-20210818-23-1jcg1ix.jpg?ixlib=rb-1.1.0&rect=0%2C0%2C5915%2C3922&q=20&auto=format&w=320&fit=clip&dpr=2&usm=12&cs=strip)
We should install air purifiers with HEPA filters in every classroom. It could help with COVID, bushfire smoke and asthma
![Efficacy of Portable Air Cleaners and Masking for Reducing Indoor Exposure to Simulated Exhaled SARS-CoV-2 Aerosols — United States, 2021 | MMWR Efficacy of Portable Air Cleaners and Masking for Reducing Indoor Exposure to Simulated Exhaled SARS-CoV-2 Aerosols — United States, 2021 | MMWR](https://www.cdc.gov/mmwr/volumes/70/wr/figures/mm7027e1-F2.gif)