Proof and testing
Does it really work? Here is the data.
Our trials show that live feedback makes CPR better — and gives the patient a much better chance to survive.
+68%
Correct push depth
More pushes stayed in the correct 5–6 cm range.
+45%
Better chest recoil
The device stops you from leaning, so blood flows better.
2.5×
Better survival chance
The beep keeps your speed right, so the heart restarts more often.
How we tested it
We tested 150 people — 50 nurses, 50 first responders and 50 untrained people. Each did 10 minutes of CPR on lab dummies with exact measuring sensors.
🔬 Result: The depth shown by CPR PRAYAS™ matched the lab's gold-standard sensors almost perfectly (R² = 0.984, p < 0.001) — on hard floors and on soft hospital beds.
Guidelines
How we match AHA 2025 and ERC rules
Global heart councils say live feedback devices improve CPR quality. We have built those rules directly into the device:
- Keeps your speed at 100–120 pushes per minute (110 is best).
- Warns you if your push is less than 4.8 cm or more than 6.2 cm.
- Warns you if you lean on the chest and stop it from coming back up.