Dive Into Success: Master the SDI Open Water Scuba Diver Exam 2026 – Make Waves with Confidence!

The risk of experiencing nitrogen narcosis significantly increases at depths above 30 meters (100 feet) due to the increased partial pressure of nitrogen that occurs with depth. As divers descent below this threshold, the effects of nitrogen narcosis can become more pronounced. This condition, often described as similar to alcohol intoxication, can impair a diver's judgment, coordination, and consciousness, which may lead to dangerous situations underwater.

While narcosis can technically start to affect divers at shallower depths, the symptoms are generally more severe and noticeable when exceeding 30 meters. This is because, at greater depths, the body absorbs more nitrogen, leading to progressively heightened effects. Understanding this risk is crucial for divers to plan their dives safely and recognize their limits when it comes to depth.