Body & Skin

Lung Health

Lung and respiratory support products, from supplements to air purifiers. Breathing problems always deserve a medical check first.

What we cover

  • Respiratory support supplements
  • N-acetylcysteine (NAC) and mullein
  • Air purifiers and indoor air quality
  • Quitting smoking: the most effective step

Common ingredients and the evidence

Ingredient or optionUsed forEvidenceNotes
Quitting smokingLung healthStrongThe single most effective step.
N-acetylcysteine (NAC)COPD flare-upsModerateStudied at high doses; ask your doctor.
HEPA air purifiersIndoor particles, allergiesModerateChoose the right size for the room.
MulleinLung "cleansing"InsufficientNo good human evidence.

Ratings follow our evidence scale and are updated as new research appears.

Claims to be careful with. No supplement can "cleanse" or repair damaged lungs, or treat asthma or COPD. Never replace inhalers or prescribed treatment.

See a doctor if…

You have shortness of breath, a cough lasting more than three weeks, chest pain or wheezing. Call 911 for severe trouble breathing.

Medical disclaimer →

These statements have not been evaluated by the Food and Drug Administration. Products discussed are not intended to diagnose, treat, cure, or prevent any disease.