Cardihaler

The new and smart updated 2026 version of the Original Cardihaler CO2-Therapy

The Cardihaler™ is a precision-engineered CO₂ breathing device designed to improve breathing efficiency, nervous system balance, performance capacity, and long-term resilience. As part of the Cardi Series developed by the Conscious Breathing Institute, it represents the most advanced application of controlled carbon dioxide training available today.

Created by Anders Olsson, pioneer in modern breathing science, the Cardihaler™ is used by thousands of individuals and instructors worldwide. Many users report noticeable effects after a single session, with consistent practice leading to deeper, lasting changes across health, performance, and daily wellbeing. 

Please spend some time to listen to this podcast episode around CO2 with the founder Anders Olsson.

The Cardihaler is a device that adds extra carbon dioxide to the air you inhale while at the same time reducing the amount of oxygen you take in.

But wait a minute. When it comes to breathing, oxygen is the good guy and carbon dioxide is the bad guy, right!?

So why add extra CO2 and reduce oxygen in the air you inhale?

Well, even though we are very dependent on oxygen, it's all about balance.

Your car doesn’t go better if you give it more fuel. Too much is just as bad as getting too little fuel.

Your car needs the right amount of fuel, which will differ depending on how fast you drive. It is exactly the same with our breathing.

Your intake of oxygen and exhale of excess carbon dioxide should match your metabolic demand.

Who Is It For / What It Does 

The Cardihaler™ is designed for people who are serious about breathing practice, health improvement, performance optimization, stress resilience, and longevity.

Your body runs on carbon dioxide. CO₂ is essential for oxygen delivery, nervous system regulation, focus, stamina, and calm. Modern life often leads to overbreathing, lowering natural CO₂ levels and reducing efficiency across the entire system.

The Cardihaler™ works by

- Gently increasing inhaled CO₂
- Slightly restricting oxygen intake
- Training the body to use oxygen more efficiently
- Supporting a calmer, more resilient nervous system

This combination helps restore the balance your physiology is designed for.

Users commonly experience

- Improved calm and emotional regulation
- Better breathing efficiency at rest and during activity
- Enhanced focus, endurance, and recovery
- Greater resilience to physical and mental stress

The Cardihaler™ is widely regarded as the favourite product in the Cardi Series, valued for its precision, ease of use, and measurable feedback during breathing practice.

This consumer wellness CO₂ breathing trainer supports breathing training and physiological adaptation. It is not intended to diagnose, treat, cure, or prevent any disease or medical condition.

With the use of CO2 you might 

• Reduce Mental Stress
• Slow Down Your Breathing
• Heal Emotional Wounds
• Open Up Your Blood Vessels
• Increase Muscle Strength
• More Blood To Your Brain
• Faster Recovery After Exercise
• Open Up Your Airways

Specifications

• CO₂ Levels: 20 adjustable levels (approx. 0.5% – 8.0%)
• Session Time: 1 – 20 minutes
• Power: USB-C (wall socket via adapter or compatible power bank)
• Weight: 2.5 kg
• Dimensions: Width: 35 cm; Length: 25 cm; Height: 16 cm

Material and Care Instructions

• Device Body: ABS plastic
• Breathing Masks: Medical-grade silicone
  
• Tubing: Silicone

Care Instructions

• Wipe clean with a damp cloth.
• Do not immerse the device in water.
  

What Is Included in the Package

• 1 × Cardihaler™ Main Unit
  Touchscreen-controlled CO2 delivery device with 20 adjustable levels
• 1 × CO₂ Regulator TR21x4
  Connects the device to a standard SodaStream Screw-in CO2 cylinder
• CO₂ Adapter (included depending on region)
  • EU orders: W21.8–14
  • USA orders: CGA320
  • Australia orders: W21.8–14 and CGA320
• 2 × Breathing Masks Size Large
  Designed for comfort and optimal CO2 distribution
• 1 × USB-C Cable
  Connects to a USB-C Power Delivery charger or compatible power bank
• 1 × USB-C Power Delivery Charger (30W minimum)
  Regional adapters included depending on region
  • EU orders > EU + UK adapters
  • US orders > EU + US adapters
  • Australia & New Zealand orders > EU + AU adapters
• 1 × Protective Product Case
• 1 × Cardistone (for CO₂ water baths for face, hands, and feet)

Compatibility

Works with SodaStream screw-in bottles
Works with larger CO₂ bottles (W21.8–14 and CGA320)

Not included: SodaStream bottles, larger CO₂ bottles, power bank.

Cardihaler setup Instruction with the founder Anders Olsson