Is air a homogeneous or heterogeneous mixture? Discover the science behind air’s composition and what sets it apart.
John Landry, BS, RRT
John Landry is a registered respiratory therapist from Memphis, TN, and has a bachelor’s degree in kinesiology. He enjoys using evidence-based research to help others breathe easier, live healthier, and improve their overall quality of life.
Spontaneous Pneumothorax: Causes, Symptoms, and Treatment
Discover the causes, symptoms, treatment options, and prevention tips for a spontaneous pneumothorax in this comprehensive guide.
Nebulizer vs. Humidifier: What’s the Difference? (2026)
Learn the key differences between nebulizers and humidifiers, including their uses, benefits, and when to use each one.
How to Increase Lung Capacity: Top 13 Proven Methods (2026)
Discover effective, science-backed ways to increase lung capacity through exercise, breathing techniques, diet, and lifestyle habits.
Mastering Complex Material in Respiratory Therapy School
Struggling in RT school? Discover tips to master concepts, ease test anxiety, and build confidence for exam and clinical success.
Top 10 Signs That Pneumonia is Improving (2026)
Discover the key signs that pneumonia is improving, including symptom relief, and what to expect during the recovery process.
How to Test Lung Capacity at Home: Step-By-Step (2026)
Learn how to test your lung capacity at home using simple tools and breathing exercises to monitor your respiratory health.
Top 10 Benefits of a Bachelor’s Degree in Respiratory Therapy
Discover the top benefits of earning a bachelor’s degree in respiratory therapy, from higher pay to expanded career opportunities.
Top 15 Essential Oils for Breathing and Lung Health (2026)
Discover the best essential oils to support breathing and lung health, ease congestion, and promote clear, healthy airways.
How Long Should You Run a Humidifier? (2026)
Learn how long to run a humidifier daily, with tips on ideal humidity levels, health benefits, and avoiding overuse.
What Type of Water to Use in a Humidifier? (2026)
Discover the best type of water to use in your humidifier to prevent buildup, improve air quality, and extend its lifespan.
How Long Does it Take for a Humidifier to Work? (2026)
Discover how long it takes for a humidifier to work and what factors affect how quickly it improves indoor air humidity.
Black Stuff in Your Humidifier: Causes, Risks, and Solutions
Discover what the black stuff in your humidifier is, why it forms, the health risks, and how to clean and prevent it effectively.
Can a Heart Monitor Detect Sleep Apnea? (2026)
Can a heart monitor or Holter monitor detect sleep apnea? Learn what it can and can’t do, and when to seek a proper diagnosis.
Anion Gap: Overview, Calculation, and Practice Questions
Learn what the anion gap is, how it’s calculated, and why it matters in diagnosing metabolic acidosis and guiding respiratory care.
Anatomic Dead Space: Overview and Practice Questions (2026)
Learn what anatomic dead space is, where it’s located, and how it affects breathing and gas exchange in the respiratory system.
Alveolar Gas Equation: Overview and Calculation (2026)
Learn what the alveolar gas equation is, how it’s calculated, and why it’s essential for assessing oxygenation and lung function.
Alveolar-Capillary Membrane: Overview and Practice Questions
Discover how the alveolar-capillary membrane enables gas exchange and why it’s vital for respiratory function and patient care.
Apnea: Overview and Practice Questions (2026)
Learn what apnea is, why it occurs, and why understanding it is crucial for respiratory therapists and clinical care teams.
Kussmaul Breathing Pattern: Overview and Practice Questions
Learn what Kussmaul breathing is, its causes, symptoms, and why it signals a serious medical emergency like diabetic ketoacidosis.