NIT, Warangal researchers develop safe sterilization system ‘OzoNIT’

HYDERABAD: Researchers at the National Institute of Technology, Warangal have developed a multi-purpose, chemical-free, and safe sterilization system ‘OzoNIT’.

Resembling a household refrigerator, this system can easily disinfect vegetables, fruits, packed food, clothes, wallet, shoes, among others, all in one ago. With a click of a button, the device produces 500 milligrams of ozone gas in an hour from ambient air.

“Exposure of these articles under ozone gas for about 20-25 minutes will kill all types of viruses, fungi, and bacteria up to 99.99% without the use of any sterilizing chemicals. Once the articles are sanitized for about half an hour, the ozone will be vented out automatically,” said D Haranath, associate professor in Physics, who developed the system along with his research scholar P Chandar Rao.


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The design of the chamber is made such that no leakage of the ozone gas takes place while it is being operated.

Researchers said that there exist many ultraviolet-C (UV-C) light-based systems in the market and can disinfect the surfaces where the radiation falls. However, they cannot disinfect the surfaces where there is a shadow of the articles. This limitation is overcome by OzoNIT,” added Haranath and said that the ozone gas produced moves all around the corners of the chamber killing the lethal viruses, fungi, and bacteria.

NV Ramana Rao, director of the institute said that OzoNIT is much powerful, effective, and superior to all UV-C based contemporary units available in the market.

“After the ozone treatment, the vegetables and fruits could be cooked/consumed fearlessly ensuing thorough cleaning under tap water. There is no change in their quality and taste,” added Rao and said that OzoNIT should become a part of every family, office, and educational institution for their daily requirement of disinfection.

“NIT Warangal is committed to launching this product into the market very soon through proper mechanism and investors,” added Rao.

The researchers said that OzoNIT can also disinfect and kill Pseudomonas aeruginosa (PsA), vegetative bacteria notified by the Centers for Disease Control and Prevention (CDC), USA, and is said to be equally dangerous as that of medium-sized virus such as SARS-CoV-2 (Covid-19).

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