![mask_1 noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com mask_1 noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com](https://www.oxfordlearnersdictionaries.com/media/english/fullsize/m/mas/masks/masks.png)
mask_1 noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com
![mask_1 noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com mask_1 noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com](https://www.oxfordlearnersdictionaries.com/media/american_english/fullsize/m/mas/masks/masks.jpg)
mask_1 noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com
![Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure, 2021 | MMWR Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure, 2021 | MMWR](https://www.cdc.gov/mmwr/volumes/70/wr/social-media/mm7007e1_DoubleMasksEfficacy_IMAGE_10Feb21_1200x675-medium.jpg?_=34716)
Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure, 2021 | MMWR
![Bilingual instruction Icon with the phrases please Wear A Mask" and "กรุณาสวมหน้ากาก" Meaning the same in English and Thai Respectively. Stock Vector | Adobe Stock Bilingual instruction Icon with the phrases please Wear A Mask" and "กรุณาสวมหน้ากาก" Meaning the same in English and Thai Respectively. Stock Vector | Adobe Stock](https://as1.ftcdn.net/v2/jpg/03/42/28/30/1000_F_342283048_wAC8rQaY98DicDzjKJSkSnfjrjbYPeeB.jpg)