"We generally recommend the use of N95s for patients with COPD for protection against PM exposure during outdoor activity under high PM conditions. However, patients with very severe COPD, mMRC scores ≥ 3, or FEV1 < 30% predicted should be careful when using N95s. Performance of the 6MWT while wearing the N95 may predict mask-associated risks in patients with severe COPD. Also, patients should be warned to remove the N95s immediately on the onset of dyspnea, headache, or dizziness.
You weren't just wrong, you were cussing mad and wrong.
yer a damnable fool