Nanoclean, an Indian Institutes of Technology (IIT) Delhi-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 .
Nanoclean, an Indian Institutes of Technology (IIT) Delhi-based startup, has developed the smallest wearable air purifier, which is as effective as an N95 grade face mask.