Remember the scene in Breaking Bad where Walter White obsesses over purity? That’s basically your tap water. It contains minerals like calcium and magnesium, which are great for your bones but a nightmare for your humidifier.
When you use tap water, these minerals get launched into the air as fine, white dust. It settles on your nightstand, your books, and even your lungs’ bronchial tubes if you’re particularly sensitive. Think of it as invisible chalk dust—except it’s silently covering your life.
Fun fact: this white dust is the exact same stuff that makes your kettle scale up. Your humidifier is basically a tiny, atmospheric tea kettle, and it will complain about it.
