Company websites mentioning use of Zoono, page-44

ZNO IMO is never going to be classified as a nano technology or biotech company.
It's not investing millions in new technology to develop patents that will last for decades etc.

ZNO will be classified as a non discretionary goods or non cyclical goods IMO.

Clorox is probably the closest profile I've so far come across.

'The Clorox Company is a manufacturer and marketer of consumer and professional products. The Company sells its products primarily through mass retail outlets, e-commerce channels, wholesale distributors and medical supply distributors.'

https://www.investing.com/equities/clorox-co-company-profile

Obviously CLX is a lot further down the development path & is listed in the US (where companies trade at a higher PE) currently trades on a PE of around 27.
For these reasons I still believe a PE of 35 is not unreasonable at ZNO stage of development.