When clearing water from a mask with a purge valve, which head position is recommended?

When clearing water from a mask with a purge valve, which head position is recommended?

• A. Tilt backward
• B. Tilt forward
• C. Turn to the side
• D. Look up

Answer: (B)

When clearing water with a purge valve, you want the valve to be the lowest point so gravity helps the water drain out as you vent the mask. Tilting the head forward brings the bottom of the mask down, positioning the purge valve to vent efficiently. This lets you exhale gently through the nose into the mask while bubbles and water exit through the valve, keeping the lens clear and the seal intact. Tilting the head backward, turning to the side, or looking up can cause water to pool at the top of the mask, making it harder for the purge valve to vent and potentially breaking the seal.

When clearing water with a purge valve, you want the valve to be the lowest point so gravity helps the water drain out as you vent the mask. Tilting the head forward brings the bottom of the mask down, positioning the purge valve to vent efficiently. This lets you exhale gently through the nose into the mask while bubbles and water exit through the valve, keeping the lens clear and the seal intact. Tilting the head backward, turning to the side, or looking up can cause water to pool at the top of the mask, making it harder for the purge valve to vent and potentially breaking the seal.