💦 Keep it Fresh, Keep it Clean! Say goodbye to hard mineral deposits! Refill water without removing the capsule. No chemicals, just pure humidification. Just drop it in and forget it for 45 days. Works with all types of humidifiers. 45-day longevity Universal fit Chemical-free The BestAir HCC31-PDQ-4 Humidifier Demineralization Treatment Capsule is a game-changer for maintaining your humidifier. Designed to prevent hard mineral buildup, these capsules last up to 45 days and are compatible with all humidifier types, eliminating the need for harsh chemicals. Simply drop one in, refill your water, and enjoy a cleaner, healthier environment.