What altitude is considered high?
What altitude is considered high? High altitude = 1500 to 3500 meters above sea level (4900-11500 ft.) Very high altitude = 3500 to 5500 meters above sea level (11500 to 18000 ft.) Extreme altitude = above 5500 meters above sea level (18000 ft.)
Is 5000 feet considered high altitude?
High altitude = 1,500–3,500 metres (4,900–11,500 ft) Very high altitude = 3,500–5,500 metres (11,500–18,000 ft) Extreme altitude = above 5,500 metres (18,000 ft)
At what altitude does hypoxia start?
In aeronautics, hypoxia typically results from a decompression or lack of pressurisation of the aircraft cabin. Hypoxia occurs within a few minutes if the cabin pressure altitude rises to between 5,000-6,000 m (about 16,000 - 20,000 ft).