View of Effectiveness of manufactured surgical masks, respirators, and home-made masks in prevention of respiratory infection due to airborne microorganisms | The Southwest Respiratory and Critical Care Chronicles
![3M N95 Particulate Respirator Surgical Mask, Cone Molded, Women Small, 20/bx | Optimus Dental Supply 3M N95 Particulate Respirator Surgical Mask, Cone Molded, Women Small, 20/bx | Optimus Dental Supply](https://cdn11.bigcommerce.com/s-83f53/images/stencil/1280x1280/products/16440/50024/iv16223__77133.1618430891.jpg?c=2)
3M N95 Particulate Respirator Surgical Mask, Cone Molded, Women Small, 20/bx | Optimus Dental Supply
![Comparison of Mask Ratings, Standards, and Filtration Effectiveness (N95, KN95, FFP1, FFP2) – Smart Air Comparison of Mask Ratings, Standards, and Filtration Effectiveness (N95, KN95, FFP1, FFP2) – Smart Air](https://smartairfilters.com/wordpress/wp-content/uploads/2020/03/mask-rating-n95-n99-ffp1-ffp3-surgical-respirator-mask-comparison.jpg)
Comparison of Mask Ratings, Standards, and Filtration Effectiveness (N95, KN95, FFP1, FFP2) – Smart Air
![3M™ N95 1860 Health Care Surgical Respirator. 5-Pack. 99+% Filtration Efficiency. Size: Regular or Small 3M™ N95 1860 Health Care Surgical Respirator. 5-Pack. 99+% Filtration Efficiency. Size: Regular or Small](https://www.medical-and-lab-supplies.com/media/catalog/product/cache/3b73af8d8cbecfb48c20c1f6cc006e04/1/8/1870s_.jpg)
3M™ N95 1860 Health Care Surgical Respirator. 5-Pack. 99+% Filtration Efficiency. Size: Regular or Small
![3M N95 Healthcare Particulate Respirators and Surgical Masks, 1860 Series:Personal | Fisher Scientific 3M N95 Healthcare Particulate Respirators and Surgical Masks, 1860 Series:Personal | Fisher Scientific](https://assets.fishersci.com/TFS-Assets/CCG/product-images/F207802~p.eps-650.jpg)