IIT-Delhi startup launches 'world's smallest' wearable air purifier

An IIT Delhi start-up has launched the "world's smallest" wearable air purifier, claiming it is as effective as an N95 face mask. According to the start-up, Nanoclean Global, Naso95 is an N95-grade nasal filter. It sticks to the user's nasal orifice and prevents bacteria, viral infection and pollen and air pollution.

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