Mr Huff
The gray warning sign of stale air: tiredness, endless yawning and that ‘heavy’ head feeling. He shows up whenever a room needs fresh air.
Think you can beat me? Ask me anything about dirty air.
Mr Huff is the character nobody wants around! He is the embodiment of everything that happens when we forget to care for the air: tiredness, endless yawning and that feeling that your head is ‘heavy’, making it hard even to think straight.
He is not a fighting villain, but a gray warning sign that shows up whenever a room needs some care.
Video Gallery
O Senhor Sufoco Foi Passear
Mr. Stuffy loves still, stale air — but let fresh air in and off he goes! About ventilated rooms, plus the golden rule: windows are for adults to open.
📚 Teaching notes — themes, curriculum and activities
IAQ theme: Effects of CO₂ build-up in closed rooms (fatigue, loss of focus); window safety.
Curriculum connections: Chemistry, Biology, Safety and Education.
Learning goals: Link ventilation to cognitive performance; internalize safety rules (windows operated by adults only).
Suggested activities: Class debate about sleepiness; posters about window safety rules.
Characters: Senhor Sufoco
Meet more of the crew
Stinky Stella
Smug and smelly, she embodies the lack of cleaning and ventilation. She cannot stand an op…
Learn how to beat it
Every air villain has a weakness: open windows, cleaning and good habits. Videos, stories and activities show the way.