At least until now, as [Aris Alder] tackles the problem with an affordable DIY supplied-air respirator ... t want to breathe in nasty volatile organic compounds. [Aris] starts the video below ...

Prof Susan Hopkins, chief medical adviser at the UK Health Security Agency (UKHSA), said respirator masks – known as FFP3s – may have performed no better than thin surgical masks in real-life ...

Only the N95 respirators which incorporate a surgical mask are designed to be fluid resistant to splash and spatter of blood and other infectious materials. 6.1.2. Limitations. N95 respirators provide ...

The question remains - are air masks really beneficial ... (SO2), ozone (O3), volatile organic compounds (VOCs) etc. PM2.5 is really devastating for our respiratory tract as its small size makes ...

A major US mask manufacturer, 3M, says the government has asked it to stop exporting US-made N95 respirator masks to Canada and Latin America. The request had "significant humanitarian ...