Nanoclean, an @iitdelhi-based startup has developed the "smallest wearable air purifier", which is as effective as an N95 grade face mask.
Naso95 is an N95 grade nasal filter. It sticks to the user's nasal orifice & prevents bacteria, viral infection, and pollen & #airpollution. pic.twitter.com/OvKdhKkxyS— IANS Tweets (@ians_india) February 25, 2022
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