Employee Environment

Open your save in Big Copilot Open in the app

As part of their Wants and Demands, some employees will demand a certain environment.

Clean work environment: Building with a cleanliness of at least 80%
Peaceful work environment: Player has a happiness of 50% or more

From the game's own in-game help (Big Ambitions by Hovgaard Games), as shipped with the game. Big Copilot reads your save and shows your businesses, supply and staffing against it.