Remove your mask underwater, keep breathing without it, replace and clear it: a practice ladder from pool to open water, with instructor and panic prevention.
What do you do when you suddenly find yourself underwater without a mask? The honest answer: keep breathing, stay calm, keep the mask in your hand and put it back on. That is all, it only feels like a lot at first. Your brain shouts "water in the face", and that is exactly where you need a rehearsed response.
Why does this drill matter so much? According to a scientific review, panic is a common factor in dive incidents. The instinctive reactions (flight, rapid ascent) do not fit the conditions underwater [4]. A small study of 27 divers showed that more anxious divers needed on average 10.8 seconds to clear a mask, calmer divers 7.1 seconds [2]. The Divers Alert Network (DAN) advises repeating the drill in the pool until it no longer threatens you [3].
The skill is a fixed part of training: the US agency NOAA's checklist lists "Remove, replace and clear mask" plus "No mask drills" [1]. This guide explains and motivates, it does not replace an instructor. How fast you get used to it is individual: some are relaxed after one pool session, others need several attempts (rule of thumb). Both are normal, and speed is not the yardstick.
Loosen the mask strap and tighten it again. Put the mask on blind, with closed eyes. Practise where your fingers go: thumb and index finger at the top of the frame. Milestone: you put the mask on blind in under five seconds (rule of thumb).
In the pool your instructor stands next to you. Briefly take the mask off and breathe exclusively through your mouth on the regulator. Your nose stays out of it. Milestone: one minute without coughing and without rushing.
Kneel on the bottom, take the mask off and hold it in one hand, do not let go. Breathe calmly through your mouth, count ten breaths. If you feel water in your eyes, close them. That is allowed. Milestone: ten calm breaths without a mask.
Bring the mask to your face from below, pull the strap over your head and smooth the hair away from the edge. Check that nothing lies between silicone and skin. Milestone: you replace the mask without hurry.
Now the techniques from the clearing guide apply: press on top of the frame, exhale through your nose, tilt your head slightly back. The exhaled air pushes the water out below. In the study of 27 divers the clearing time was between 7 and 11 seconds [2]. Milestone: clean three times in a row.
First kneeling in shallow depth, later hovering next to your buddy. The NOAA checklist lists the drill in both pool and open water [1]. In open water cold, visibility and current join in. Milestone: you manage the drill hovering, without your breathing tipping over.
Turn the drill into a game in three beats: breath, hand, look. First breathe, then hand to the mask, only then move. This triad slows the reflex to act hectically. And train it with less visibility, for example in murky water: if you are used to working by feel only, you stay calm in dark situations.
Yes. Removing, replacing and clearing is a core skill in training checklists like NOAA's [1]. It is not an end in itself but preparation for a lost or flooded mask.
Exclusively through your mouth on the regulator. Your nose stays out because water there triggers coughing. Practise standing first, then kneeling.
Stop, breathe, think, then act. DAN recommends this too [3]. If it does not improve, end the drill and signal your instructor.
That is normal and has to do with tension: more anxious divers needed about 10.8 seconds versus 7.1 in one study [2]. With practice and calm it gets faster.
Regulator Clearing: Getting Water Out of the Second Stage Without Rushing