The respiratory therapist who earns the highest salary in the United States is typically the Respiratory Supervisor, with an annual income of approximately $108,396, which translates to about $9,033 per month. This role generally involves overseeing respiratory therapy departments, managing staff, and ensuring quality patient care, which justifies the higher compensation. Other well-paying positions include Registered Respiratory Therapists earning around $101,636 annually and Respiratory Nurses earning approximately $85,698 annually. The salary for Certified Respiratory Therapists tends to be lower, around $63,979 annually. Overall, supervisory roles in respiratory therapy tend to offer the highest salaries due to increased responsibilities and leadership requirements.