Breathing in the Dome: The Physics of Tent Ventilation

Preventing CO Poisoning on Your Everest Expedition

The Danger of a Sealed Space

Inside a high-altitude tent near the Mount Everest summit, the air is your most precious resource. Understanding the physics of ventilation is vital for preventing carbon monoxide poisoning during your Mount Everest expedition and Everest trekking journey.

The Buoyancy of Warm Air

Warm, stale air rises. Modern Mount Everest summit tents feature top-vents that allow this air—and any toxic stove gases—to escape. Managing this airflow is a life-saving skill for any Mount Everest expedition member.

Vents on a high altitude tent showing airflow
Cross-Ventilation vs. The Freeze

In a storm at 8,000m, it’s tempting to seal the tent. However, you must maintain a 'cross-flow' of air to ensure you have enough oxygen to breathe. This balance is the hallmark of a disciplined Mount Everest expedition team.

Stove Placement and Convection

Cooking in the vestibule (porch) ensures that gas fumes stay out of the sleeping area. This logistical detail is what keeps Mount Everest summit teams healthy and alert for the final push during their Mount Everest expedition.

Safety in the Shelter

Your tent is your primary armor against the Mount Everest summit environment. Manage its ventilation with total focus to ensure a safe and successful Mount Everest expedition. Great job!