Respiratory therapists work to treat and care for patients with heart and lung disorders. The field is growing rapidly due to an aging population and increased treatment for lung diseases. Therapists work in hospitals, clinics, and homes to treat conditions like asthma, COPD, and pneumonia. Duties include administering medication and oxygen, assessing patients, and operating ventilators. To become a respiratory therapist, one can earn an associate's or bachelor's degree in respiratory care. The career offers job security, competitive pay, and the opportunity to help others in need of lung care.