![Biodegradable and multifunctional surgical face masks: A brief review on demands during COVID-19 pandemic, recent developments, and future perspectives - ScienceDirect Biodegradable and multifunctional surgical face masks: A brief review on demands during COVID-19 pandemic, recent developments, and future perspectives - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0048969721043060-ga1.jpg)
Biodegradable and multifunctional surgical face masks: A brief review on demands during COVID-19 pandemic, recent developments, and future perspectives - ScienceDirect
![Amazon.com: Wecolor 100 Pcs Disposable 3 Ply Earloop Face Masks, Suitable for Home, School, Office and Outdoors (Gray) : Industrial & Scientific Amazon.com: Wecolor 100 Pcs Disposable 3 Ply Earloop Face Masks, Suitable for Home, School, Office and Outdoors (Gray) : Industrial & Scientific](https://m.media-amazon.com/images/I/719ZrR5RoCL.jpg)
Amazon.com: Wecolor 100 Pcs Disposable 3 Ply Earloop Face Masks, Suitable for Home, School, Office and Outdoors (Gray) : Industrial & Scientific
![Alternative Face Masks Made of Common Materials for General Public: Fractional Filtration Efficiency and Breathability Perspective - Aerosol and Air Quality Research Alternative Face Masks Made of Common Materials for General Public: Fractional Filtration Efficiency and Breathability Perspective - Aerosol and Air Quality Research](https://aaqr.org/images/article_images/2020/feature/20-07-0423.png)
Alternative Face Masks Made of Common Materials for General Public: Fractional Filtration Efficiency and Breathability Perspective - Aerosol and Air Quality Research
Reusability Comparison of Melt-Blown vs Nanofiber Face Mask Filters for Use in the Coronavirus Pandemic | ACS Applied Nano Materials
![Efficacy of masks and face coverings in controlling outward aerosol particle emission from expiratory activities | Scientific Reports Efficacy of masks and face coverings in controlling outward aerosol particle emission from expiratory activities | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-020-72798-7/MediaObjects/41598_2020_72798_Fig1_HTML.png)
Efficacy of masks and face coverings in controlling outward aerosol particle emission from expiratory activities | Scientific Reports
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
![Polymers | Free Full-Text | Face Masks to Combat Coronavirus (COVID-19)—Processing, Roles, Requirements, Efficacy, Risk and Sustainability Polymers | Free Full-Text | Face Masks to Combat Coronavirus (COVID-19)—Processing, Roles, Requirements, Efficacy, Risk and Sustainability](https://www.mdpi.com/polymers/polymers-14-01296/article_deploy/html/images/polymers-14-01296-g001.png)
Polymers | Free Full-Text | Face Masks to Combat Coronavirus (COVID-19)—Processing, Roles, Requirements, Efficacy, Risk and Sustainability
![Quantitative Method for Comparative Assessment of Particle Removal Efficiency of Fabric Masks as Alternatives to Standard Surgical Masks for PPE - ScienceDirect Quantitative Method for Comparative Assessment of Particle Removal Efficiency of Fabric Masks as Alternatives to Standard Surgical Masks for PPE - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S2590238520303647-fx1.jpg)
Quantitative Method for Comparative Assessment of Particle Removal Efficiency of Fabric Masks as Alternatives to Standard Surgical Masks for PPE - ScienceDirect
![Effectiveness of face masks used to protect Beijing residents against particulate air pollution | Occupational & Environmental Medicine Effectiveness of face masks used to protect Beijing residents against particulate air pollution | Occupational & Environmental Medicine](https://oem.bmj.com/content/oemed/75/6/446/F1.large.jpg)