No more replacing filters! Evaporative humidifier with PermaWick filter needs no regular maintenance, soaking or additives; simply clean once a year. Patented triple antibacterial SafeSystem provides 100% protection against bacteria, mold and spores. Adjustable humidistat with desired humidity light, whisper-quiet Hunter fan, Airtight Tote Away tank for easy transport, two speeds/power light. Output for rooms up to 1,350 sq ft. Each