Defence Institute of Advanced Technology (DIAT) designs biodegradable cotton mask using herbal extract
A herbal extract obtained from neem oil, turmeric, tulsi (holy basil), ajwain (carom seeds), black pepper, gum arabic, clove, sandalwood and saffron has been used in the non-woven nano-fibre of this biodegradable mask, named 'pavitrapati', a patented invention.