This is the Nevon Breather Mask that retails online at Rs 4,699. This mask comes with a built-in filtration system and is powered by a lithium-ion battery that gives 8 hours of runtime. The company says that it is effective against the COVID-19 virus as it offers up to 5x N95 grade filtration with an active carbon layer and a face shield. Here's the unboxing of the Nevon Breather Mask and what it offers.