Which of the following factors does NOT influence the effects of hypoxia?

The influence of hypoxia, which is a deficiency in the amount of oxygen reaching the tissues, is significantly affected by several physiological and environmental factors, excluding certain irrelevant ones. The color of the oxygen mask does not play any role in determining the effects of hypoxia.

In contrast, altitude reached is critical, as higher altitudes have lower atmospheric pressure and therefore less available oxygen, heightening the risk of hypoxia. The rate of ascent is also important; a rapid ascent can lead to a sudden drop in available oxygen, increasing the likelihood of hypoxia before the body can acclimatize. The duration of exposure is relevant because the longer someone is in a low-oxygen environment, the more pronounced the effects of hypoxia will be.

Thus, while altitude, ascent rate, and exposure duration are all key factors in understanding hypoxia, the color of the oxygen mask has no bearing on these physiological effects.