Let your prospects identify themselves!
1. Write an interesting information product (10 ways your product helps public bathrooms), shoot a video where you demonstrate how it works, host a webinar.
2. Tease your information product in a campaign (could be on Linkedin as mentioned, or on some trade website) and target your campaign as well as you can.
3. Send prospects to a landing page (on f.ex. Mailchimp or similar), where they register with email-adress and other relevant information.
4. Share your information-product after registration, and follow-up with interesting content.

This should deliver a pipeline of leads to you, that allows you to sell your product to people, who already know about it.

Good luck with it - and set up a call if you want to talk more.

Best regards
Kenneth Wolstrup