So, the thing about CPAP is it's a blunt instrument because it's, think of it, it's just it's just a split that keeps open your airway. It's it's it creates a pillow of air that so if your airway wants to collapse, it can't. And and CPAP, it's continuous positive airway pressure. Continuous cuz it's blowing continuously. Positive airway pressure as opposed to negative pressure, which is sucking. Positive airway pressure is blowing. So, it's just continuously blowing air in your airway to create a pillow of air to keep it open. That's all it is. It's a blunt instrument.