[SPONSORED] The science behind a copper-based face-mask which promises protection from Covid-19. Newzroom Afrika 12:36 3 years ago 768 Скачать Далее
Is a copper-infused mask safer than a standard mask? Click On Detroit | Local 4 | WDIV 3:07 4 years ago 88 995 Скачать Далее
Coronavirus explained: does wearing a face mask protect you from Covid-19? Channel 4 News 9:31 4 years ago 70 322 Скачать Далее
Why respirators and face masks are effective against Covid Guardian Australia 0:55 2 years ago 1 811 Скачать Далее
Explained: How to Choose a Mask to Protect Against COVID-19 NBC Bay Area 2:24 2 years ago 2 719 Скачать Далее
Businesses Buy Smile-Friendly Surgical Face Masks During Covid-19 Bloomberg Quicktake 0:56 4 years ago 3 841 Скачать Далее
Covid-19 Explained: Should people wear face masks and use hand sanitiser? The Journal 0:42 4 years ago 4 636 Скачать Далее
Australian innovators create copper face masks | Coronavirus | 9 News Australia 9 News Australia 1:51 3 years ago 68 129 Скачать Далее
Face Masks: Materials, Fit, and Filtration during the COVID-19 Pandemic | ARC IPC ARC IPC at UAB 54:35 2 years ago 380 Скачать Далее
Are Cloth Masks enough to protect you from Omicron? | Apollo Hospitals Apollo Hospitals 0:30 2 years ago 11 039 Скачать Далее
How effective are masks? A team of scientists breaks it down KTVB 2:16 4 years ago 11 955 Скачать Далее