Can You Use Tap Water in a Nebulizer?
💡TL;DR: Never use tap water in a nebulizer. It isn’t sterile, and aerosolizing it can seed germs into your lungs, including Legionella and nontuberculous mycobacteria. Use sterile 0.9% normal saline, distilled water (for cleaning) or, sterile water labeled for inhalation; single-use saline ampoules typically cost about $0.