Cabin air
Cabin air circulation
In modern aircraft, only half of the cabin air is removed from the aircraft, the other half is passed through highly effective filters back into the air-conditioning system. Fresh air enters the cabin continually in quantities that are 10–20 times larger than that needed by each passenger and consequently, there is no lack of oxygen in cabin air.
Filters remove all particles larger than 0.3 microns from the air. Research studies have shown that recirculated air does not contain bacteria, viruses or other solid particles. Fresh air enters the cabin through the nozzles located in the ceiling and upper shelves and is removed through the exhaust ports located in the lower portion of the legroom sidewall. Modern air-conditioning techniques prevent the movement of cabin air lengthwise along the aircraft.
Use of recirculated air decreases fuel consumption and makes flying more economical and environment-friendly.
The air pressure in the cabin is the same in all types of aircraft cruising at the same altitude. Typical flight altitudes for jet aircraft vary between 10–12 km (30,000–40,000 ft.), and 5–7 km (16,500–23,000 ft.) for turboprop aircraft. The air pressure in the cabin of turboprop aircraft is higher than in jet aircraft, as they fly at a lower altitude.
Passengers allergic to animals
Please mention at the time of making your reservation if you are allergic to animals. If an allergic person has reserved a ticket for a certain flight, that flight can be closed to people travelling with a cat or a dog. If, on the other hand, a cat or a dog is already listed in the reservations for a certain flight, we can recommend another flight to the allergic person. Due to effective air-conditioning onboard the aircraft, however, the risk of being exposed to animal allergens is very small.
Keywords
Cabin air
Air pressure
Air circulation
Allergi to animals



