£0
Pollution 100%
⟳ Updating flow…
Clearing pollution…
Polluted
Clean

📱 Best in landscape

Rotate your phone sideways for more room!

Open Day Challenge

Ventilation Game

Add outlets, fans, and doors to clear the pollution. Score = steps to clear × total cost. Lowest wins!

How it works → All simulations

How to play

  1. Watch the pollution The room fills with pollution — you can see it live as you build.
  2. Place tools Tap Outlet, Fan, or Door, then tap the room to place it. Watch the pollution start to clear!
  3. Score it Hit Score — the simulation resets and counts how fast your layout clears to 95% clean.
  4. Beat the board Score = steps × cost. Lower is better. Submit your best run!

Top teams

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