Freediving Equalization Tips: Frenzel, Breathwork, and Mobility
Simple practices to improve sinus clarity, relaxation, and pressure control
Equalization is one of the most important skills in freediving, and one of the most misunderstood. Many divers think it is only about technique, but in practice, smooth equalization depends on much more than that. Mobility, coordination, airway clarity, timing, and relaxation all play a role.
Before getting into breathwork or stretching drills, it helps to return to the basics.
The 4 Key Points of Equalization
No matter what equalization method you use, these four points are the foundation:
1. Relax
Tension is one of the most common reasons equalization becomes difficult. If the jaw, tongue, throat, neck, or face is tight, pressure adjustment is far less likely to feel smooth. A relaxed body allows the structures involved in equalization to work with less resistance.
2. Good body position
Body position matters more than many freedivers realise. A streamlined position with a neutral head and neck helps the airway stay organised and functional. Looking up, twisting, or carrying tension through the upper body can make equalization more difficult than it needs to be.
3. Frequency
Equalization should happen early and often. In most cases, that means at least every couple of seconds during descent, especially in the first part of the dive. Waiting until you feel strong pressure usually makes equalization harder and encourages forcing.
4. Soft — no forcing
Good equalization should be gentle. It is not something to push hard against. Forcing pressure creates tension and increases the risk of discomfort or injury. A soft, frequent, relaxed approach is usually far more effective than trying to overpower resistance.
Understanding Frenzel Equalization
For most freedivers, Frenzel equalization is the most effective and reliable technique for depth. In simple terms, Frenzel uses the tongue and throat to move air upward toward the ears, rather than pushing air from the lungs.
Here is the basic idea:
The nose is closed
The glottis stays closed, so air is not driven up from the lungs
The tongue acts like a piston
Air is compressed in the mouth and throat space
that air is directed into the Eustachian tubes to equalize the ears
A simple way to think of it is this: in Frenzel, the tongue creates the pressure, not the chest.
This matters because pushing from the lungs becomes less efficient as you go deeper. Frenzel gives freedivers more precision, more consistency, and less strain. But even good Frenzel depends on relaxation, timing, body position, and coordination, which is why dry practice can help so much.
Why Breathwork Can Help Equalization
Breathwork is often associated with relaxation and breath-hold training, but it can also support better equalization. The right breathing practices may help freedivers improve airway awareness, settle the nervous system, and reduce unnecessary tension in the areas most involved in pressure adaptation.
Equalization can be affected by:
jaw tension
neck tightness
poor tongue coordination
limited upper airway awareness
nasal congestion
stress and nervous system activation
When these factors improve, equalization often becomes easier and more consistent.
Breathwork for Sinus Clarity: Anulom Vilom
A useful breathing exercise for freedivers is Anulom Vilom, a simple form of alternate nostril breathing. Practised gently, it can help calm the nervous system, improve breath awareness, and support a clearer feeling through the nasal passages before training or depth sessions.
A few minutes of Anulom Vilom before diving can help freedivers feel more relaxed, more aware of the airway, and better prepared for smooth equalization.
Why Freedivers May Benefit from Anulom Vilom
Supports nasal airflow
Slow, alternating breathing through each nostril can help increase awareness of airflow and encourage a clearer, more open feeling in the nasal passages.
Promotes relaxation
When the nervous system is calm, there is often less tension in the jaw, tongue, throat, and neck — all of which can influence equalization.
Improves airway awareness
Because the breath is slow and deliberate, this practice can help freedivers become more aware of the upper airway and improve coordination that may support smoother equalization.
How to Practice Anulom Vilom
Sit comfortably with a tall spine and relaxed shoulders.
Rest one hand on your lap.
Inhale gently through both nostrils.
Close the right nostril with your thumb.
Exhale through the left nostril, then inhale through the left.
Close the left nostril and exhale through the right.
Inhale through the right nostril.
Continue alternating sides for 1 to 3 minutes at a slow, relaxed pace.
Finish with one smooth breath in and a slow exhale.
The goal is not to force the breath, but to feel calmer, clearer, and more coordinated before diving.
Neck and Jaw Mobility for Easier Equalization
Tension in the neck and jaw can interfere with equalization mechanics, especially for freedivers working on Frenzel or mouthfill. Gentle mobility exercises can help reduce unconscious tightness and improve freedom of movement in the structures involved.
Neck Stretches
Sit upright and keep the shoulders soft.
Gently lower your right ear toward your right shoulder and hold
Repeat on the left side
Rotate the chin slightly toward the collarbone and repeat on both sides
If needed, rest your hand lightly on your head for added weight, but never pull
The goal is to release tension and create space, not to force a deep stretch.
Tongue and Jaw Mobility
These exercises may feel a little unusual, but they can be very helpful for oral flexibility and coordination.
Tongue
Extend the tongue fully without straining the face
Retract it along the roof of the mouth
Draw slow circles along the lips in both directions
Jaw
Open the jaw wide without creating extra tension in the face
Move the jaw gently from side to side
Slide it forward and back
Rotate slowly in both directions
These small movements can improve awareness and mobility in the mouth, jaw, and surrounding tissues — all of which support easier equalization.
Tongue Position and Upper Airway Awareness
For freedivers working on equalization, tongue position matters. In Frenzel, the tongue helps create pressure, so building awareness here can improve control and coordination.
A simple dry drill is to place the tongue gently on the roof of the mouth, just behind the front teeth, while keeping the jaw relaxed and the face soft. Breathe calmly and notice how the tongue, throat, and upper airway organise without strain.
You can also explore gentle tongue lifts against the roof of the mouth and then release, staying relaxed throughout. This can help improve awareness of the structures involved in controlled equalization, especially for freedivers developing a more reliable Frenzel technique.
A Simple Dry Equalization Routine
Before a dive session, many freedivers benefit from a short dry preparation routine, such as:
1 to 3 minutes of Anulom Vilom
gentle neck stretches
jaw and tongue mobility work
tongue position and upper airway awareness drills
This kind of preparation can help you feel more open, relaxed, and coordinated before entering the water.
Final Thoughts
Equalization is not just about knowing a technique. It is also about how well the body is prepared to perform that technique under pressure. Relaxation, body position, timing, airway awareness, and mobility all influence how smooth equalization feels in the water.
Understanding the basic mechanics of Frenzel equalization and supporting them with simple dry practices can make a real difference. Breathwork, neck and jaw mobility, and tongue awareness are all useful tools for freedivers who want to equalize with more ease and less effort.
At Orenda Freediving, we encourage divers to build equalization through awareness, consistency, and good preparation — not force.
If you're looking for freediving coaching in Koh Tao, you can train with Orenda Freediving. Small groups with personalised coaching from beginner to instructor level. Click here for coaching