The UI for the game itself is nice and the premise itself is easy to understand, yet leaves a lot of room for more challenges to add on to the game. The only thing I was confused on was just how was the mood being improved in the first place? From the sound of gas and the effects that happened with the press of the button, I feel like your just pumping the room full of laughing gas, which I guess would explain why the people wouldn't be so productive if the mood was too high....
This was interesting so nice job.