Don’t buy masks with exhalation valves, according to the CDC. Price: More expensive disposable masks don’t guarantee better protection, so don’t sweat price point, experts say.

Qudi debuted the world’s first emotional LED mask at CES 2022. The mask is made out of translucent glass eye goggles attached to a mouth coverage that contains 199 smart LED pixels.

The global stabilization of planar angle rigid formations is acknowledged to be a challenging problem in the existing literature even when relative position measurements are available among ...