Helmet heat and cooling
Your helmet gets hot because its vents run on road speed. At 10 km/h a vent gets about 1/36 of the push it gets at 60 km/h, and at a red light it gets none.
Cracking the visor or opening every vent lets heat out, but in haze season it also lets smoke in unfiltered.
The guides below explain where the heat comes from, the vent trade-off, and how to handle both without breathing more smoke.
Start here
- Do Motorcycle Helmets Get Hot? Why Vents Stop Working at Body TemperatureDo motorcycle helmets get hot? Why vents stop working at body temperature.
- Motorcycle Helmet Too Hot: By 2031 the Hottest Rides Are Also the SmokiestMotorcycle helmet too hot: why the hottest rides are also becoming the smokiest.
- Your Hand Is Already on the Vent: The Ranked Protocol for Helmet Temperature in Haze SeasonA ranked protocol for helmet temperature in haze season.
Every guide in this topic (8)
Why helmets get hot
- Do Motorcycle Helmets Get Hot? Why Vents Stop Working at Body TemperatureDo motorcycle helmets get hot? Why vents stop working at body temperature.
- Motorcycle Helmet Too Hot: By 2031 the Hottest Rides Are Also the SmokiestMotorcycle helmet too hot: why the hottest rides are also becoming the smokiest.
- Manila Crawls at 17.2 km/h: Why a Motorcycle Helmet Too Hot to Wear Is Really an Air-Quality ProblemManila at 17.2 km/h: why a helmet too hot to wear is also an air-quality problem.
Vents, fans and what to do
- Your Hand Is Already on the Vent: The Ranked Protocol for Helmet Temperature in Haze SeasonA ranked protocol for helmet temperature in haze season.
- Every Vent Open, Every Particle In: How to Pick a Motorcycle Helmet for Hot Weather When the Air Is SmokeHow to pick a helmet for hot weather when the air is smoke.
- Smoke Doesn't Care Which Vents Are Open: Motorcycle Helmet Ventilation in the 2026 Haze SeasonHelmet ventilation in haze season: why smoke ignores which vents are open.
- Southeast Asia Haze 2026: Why Your Helmet Vents Make It WorseSoutheast Asia haze 2026: why open vents make it worse.
- Your Helmet Fan Is Moving Haze Around Your Face: Motorcycle Helmet Fan vs Air FilterHelmet fan vs air filter: why a fan alone moves haze around your face.
Want airflow that does not depend on road speed? See how Easi Breezi feeds filtered air into your helmet, even at a standstill.