One of the more complete offerings we’ve seen is this hybrid respirator build from [Ben ... It uses a laser-cut chipboard frame to fit three HEPA filters, originally designed for the Roomba ...

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 ...

This respirator is compatible with all 3M bayonet-style cartridges and filters and comes in its own storage bag. What you should consider: Filters are not included, so be sure you buy the ones ...