Corona warriors are fighting a huge battle against COVID every day armed with PPE kits, masks and gloves. All these protective covers need to be sanitised for extra safety.
A product aptly named Vajra Kavach removes the scourge of viral particles from equipment used by our Corona warriors. Yes, the disinfection system, developed by Mumbai-based startup Indra Water, removes any possible traces of the disease-causing SARS-Cov-2 virus from Personal Protective Equipment, N95 masks, coats, gloves and gowns. It thus enables reuse of PPEs and other materials used by healthcare workers. It thus protects not only them but our environment too, by helping reduce biomedical waste generation. It is also making personal protective equipment more available, affordable, and accessible.
"Your Material will get Disinfected in a few Minutes"
What makes this even more useful is that the disinfection is done in just a few minutes. The system is being manufactured at Indra Water's factory at Bhiwandi in Mumbai, from where it is delivered to hospitals.
Viral Load is reduced by One Lakh times
"Our system is able to achieve a 1,00,000-fold reduction in the number of microorganisms; in scientific terms, tests showed that we got 5 log (99.999 per cent) reduction of viruses and bacteria," informs a proud Abhijit VVR., one of the cofounders of Indra Water. 'Log reduction' is a term used to signify the relative number of living microbes that are eliminated after a process such as disinfection.
The validation and testing of the system was done by the Department of Biosciences & Bioengineering at IIT Bombay. "Vajra Kavach went through a very long trial and testing process. It was tested with Escherichia virus MS2 (a single-stranded RNA virus and a well-known surrogate of human respiratory viruses such as influenza virus and coronavirus) and E.coli strain C3000. Full loads of the virus and bacteria samples were placed on a PPE. The PPE was then placed inside the Vajra Kavach. After the disinfection cycle time, the PPE was removed and the sample was rechecked to assess the growth rate and log reduction of the virus." Abhijit informs that the system employs a multistage disinfection process consisting of advanced oxidation, corona discharge and UV-C light spectrum to inactivate the viruses, bacteria, and other microbial strains present on the PPE, achieving more than 99.999 per cent efficiency.
From Idea to Implementation
To implement the idea, Indra Water modified its water purification technology and came up with the totally indigenous disinfection system, says Abhijit. "Every component used in the manufacturing of this disinfection system is made in India. Nothing is procured from outside."
Healthcare Workers find it Very Useful, New Version on the Way
"Vajra Kavach’s UV disinfection of PPE is elegant, user friendly and convenient. The system is adequate for our 25-bed Covid Care Center. It will help us use fewer PPEs," says Doctor Nisha Shah, Chief Medical Officer, IIT Bombay Hospital. Mumbai’s Cama Hospital, Chhatrapati Shivaji Maharaj Hospital, St. George Hospital are some other hospitals in Mumbai where Vajra Kavach disinfection system has been installed.
Indra Water is a 20-member startup whose core area is the treatment and disinfection of wastewater discharged from apartments, industry, factories, etc.