![Amazon.com: 3M 7503 Large Silicone Ultimate Half Mask 7500 Series Reusable Respirator With Cool Flow Exhalation Valve, 4 Point Harness And Bayonet Connection, English, 15.34 fl. oz., Plastic, 5.8" x 10" x Amazon.com: 3M 7503 Large Silicone Ultimate Half Mask 7500 Series Reusable Respirator With Cool Flow Exhalation Valve, 4 Point Harness And Bayonet Connection, English, 15.34 fl. oz., Plastic, 5.8" x 10" x](https://m.media-amazon.com/images/I/91denMDvVGL._SY350_PKmb-play-button-overlay_.png)
Amazon.com: 3M 7503 Large Silicone Ultimate Half Mask 7500 Series Reusable Respirator With Cool Flow Exhalation Valve, 4 Point Harness And Bayonet Connection, English, 15.34 fl. oz., Plastic, 5.8" x 10" x
![CDC says surgical masks can replace N95 masks for coronavirus protection in some cases - The Washington Post CDC says surgical masks can replace N95 masks for coronavirus protection in some cases - The Washington Post](https://www.washingtonpost.com/resizer/EpQrbbFwdXAEr0XOi2CSMMxpwV0=/arc-anglerfish-washpost-prod-washpost/public/LOXDNSC664I6VLCQDBYB4FHANU.jpg)
CDC says surgical masks can replace N95 masks for coronavirus protection in some cases - The Washington Post
![Engineers design a reusable, silicone rubber face mask | MIT News | Massachusetts Institute of Technology Engineers design a reusable, silicone rubber face mask | MIT News | Massachusetts Institute of Technology](https://news.mit.edu/sites/default/files/styles/news_article__image_gallery/public/images/202007/MIT-Reusable-Mask-02.jpg?itok=boRQn1to)