A:Answer This humidifier does not require a filter. For maintaining the stainless steel tank and preventing mineral buildup, you can use citric acid descaler tablets to dissolve limescale:
• 8‑pack citric acid descalers: https://www.bestbuy.com/product/livatro-citric-acid-cleaning-8-individually-wrapped-descalers-for-humidifiers-kettles-distillers--powerful-antilimescale/J3R8Z4PJ2C
• 30‑pack citric acid descalers: https://www.bestbuy.com/product/livatro-citric-acid-cleaning-30-individually-wrapped-descalers-for-humidifiers-kettles-distillers--powerful-antilimescale/J3R8Z4PJ2K
To help reduce hard water buildup, odor, and white dust you can also use humidifier cleaning/ion balls:
• 3‑pack cleaning balls: https://www.bestbuy.com/product/livatro-livatro-3-pack-humidifier-cleaning-ball-fights-mold-odor-prevents-hard-water-build-up-for-humidifiers-fish-tanks/J3R8ZC9KPH
• 6‑pack cleaning balls: https://www.bestbuy.com/product/livatro-livatro-6-pack-humidifier-cleaning-ball-prevents-hard-water-build-up-removes-odor-for-all-humidifiers-fish-tank/J3R8ZC9KRQ
