To breathe a whiff of fresh air in a metro is next to impossible. Those on two wheelers or walking on pavements are often seen wearing face masks to keep unwanted oxides and dust particles out. From the usual white and green surgical mask to reusable imported varieties, face masks are almost compulsory. But while a mask filters pollutants, its thick membrane of filters obstructs the free flow of air making breathing difficult.
To let those wearing masks breathe easy , a team incubated at IIT-Delhi has developed a tiny wearable device as an alternative. It can filter pollutants with negligible resistance to air flow. The nasal device -Nosacle -has two nozzles, similar to those widely used for sleep apnea and other conditions. It is tiny , reusable and is barely visible as it fits snugly in the nostrils. Tests conducted on the device show that it can keep 90% of the pollutants out of the nasal chamber...................Read more
Source: The Times of India
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