If the grocery store is out (because everyone’s humidifier is plotting together), hit up your local pharmacy or drugstore. Places like CVS or Walgreens usually stock distilled water near the baby formula or laxatives—because apparently, pure water is only for infants and people with digestion issues. You’ll find smaller half-gallon jugs there, often for a few bucks. It’s a bit like buying designer water for your home appliances. Your humidifier deserves the spa treatment.
Pro tip: Check the expiration date. Yes, water can expire? Technically, no—but the plastic jug can leach chemicals after a year. Treat it like a yogurt that won’t taste like yogurt.