In general, most modern passenger jets are quiet and comfortable with good levels of ventilation. All our flights are non-smoking, so the level of airborne pollutants is far lower than on most city streets. Fresh air is added to recycled air through very fine filters to remove dust, viruses, fungi and bacteria, and is delivered to the top of the cabin and extracted at floor level to carry any particles downwards away from the breathing zone.
The air within the cabin is of low humidity, but no more so than many parts of the world, particularly desert regions. This does not cause a problem for most passengers, but some do experience slight discomfort from drying of the skin, eyes and nose. Moisturizers, water atomizers and eye drops are usually sufficient to avoid any discomfort. Most passengers who wear contact lenses have no problems inflight, but some do experience discomfort and prefer to wear spectacles instead.