CNS oxygen toxicity is the main form seen in diving. Pulmonary oxygen toxicity is not of concern except in very long technical dives (extended cave or rebreather dives, for example) lasting six to 12 hours or more.Prolonged dives within the safe limits for CNS oxygen toxicity may still cause ocular toxicity, which manifests as a narrowing of the visual field and myopia.ulmonary oxygen toxicity is not of concern except in very long technical dives (extended cave or rebreather dives, for example) lasting six to 12 hours or more. Prolonged dives within the safe limits for CNS oxygen toxicity may still cause ocular toxicity, which manifests as a narrowing of the visual field and myopia.
Back to top. 1  No. The Ergo is designed so that your baby is carried in a seated position which supports the spine by dispersing the weight of the head over the hips, thighs and spine. 2  Because of this healthy and Ergonomic design, it is not possible to wear your baby facing out.
Wear as a side-slit dress. 1  Hold the sarong vertically and wrap around your back, like a towel. 2  At the front of the dress, gather two of the edges at waist level and tie in a double knot. 3  Pull the waist-level know to one side, until the slit opens at the side of your leg.. Wear as a bandeau cascade dress. 1  Hold the sarong horizontally and wrap around your back, like a towel. 2  Hold the sarong at the corners, then move your hands along the edges of the material until they are about a foot closer to the chest on each side.