![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-F1-large.gif)
Efficacy of Portable Air Cleaners and Masking for Reducing Indoor Exposure to Simulated Exhaled SARS-CoV-2 Aerosols — United States, 2021 | MMWR
![DVIDS - Images - Vilseck Army Dental Clinic installs HEPA air filters to fight COVID infection [Image 3 of 3] DVIDS - Images - Vilseck Army Dental Clinic installs HEPA air filters to fight COVID infection [Image 3 of 3]](https://d1ldvf68ux039x.cloudfront.net/thumbs/photos/2102/6532496/1000w_q95.jpg)