Brondell Air Purifier Humidifier Replacement Filters for Revive - Humidifier Filter Pack of 3, One-Year Set, Change Every 4 Months, Evaporative Humidity. PRF-52

Humidifier Filter Pack (Pack of 3):Three (3) Humidifier FiltersOne-Year Replacement Set (Change every 4 months or as needed)- Only for the O2+ Revive PR50-W & PR50-BO2+ Revive The Revive is a combination air purifier and humidifier, designed to remove pollutants and add moisture for cleaner, more comfortable air. The self-regulating Evaporative Humidification Method utilizes small, light-weight water particles to evenly humidify the room. The Revive has two True HEPA filters, a carbon filter, a specialized filter, and a humidifier filter which operates similar to an air washer trapping dust and other air particles in the filter so they are taken out of the room’s atmosphere. The water tank holds 3.5 Liters of water for a full day of humidification, the True HEPA filters and Carbon filter are changed every year and the specialized filter and humidifier filter get changed after four months or as needed.

• ONE YEAR REPLACEMENT FILTER PACK: Three Humidity Filters for one year of use in the O2+ Revive are included. Specialty Filters and Standard Replacement Filters are NOT included (sold separately)
• EVAPORATIVE HUMIDIFICATION: Water particles used to humidify the room’s atmosphere are small and light-weight and can travel through the air more easily and efficiently, providing an even humidity throughout the room.
• AIR PURIFIER AND HUMIDIFIER: The Humidifier Filter and a Humidity Sensor work together to control the amount of moisture released based on the room's temperature and humidity level. Operates similar to an air washer trapping dust and other air particles in the filter so they are taken out of the room’s atmosphere.
• ONLY FOR REVIVE: The Revive Humidifier Filter Pack will only work with the Brondell O2+ Revive models PR50-W and PR50-B.
• REVIVE REPLACEMENT FILTERS: The Humidifier Filters (PRF-52) get changed after four months or as needed along with the Specialized Filters (PRF-58). The Standard Replacement Filter Pack (PRF-51) is changed every year. Standard Replacement Filter Pack and Specialized Filters are sold separately.