Brondell Set of 3 O2+ Revive Replacement Off-gassing Filters

1-YEAR REPLACEMENT FILTER PACK: Using a proprietary catalyst, the Specialized Off-Gassing Reduction Filter effectively removes invisible substances like formaldehyde and VOCs that contribute to Sick House Syndrome that can cause health and respiratory issues. Standard Filter Pack and Humidifier Filters NOT included (sold separately). The Revive is a premium True air purifier and unique humidifier. Don't just filter your air, refresh it with the Revive. Adding moisture to filtered air not only helps relieve allergy symptoms, stuffy nose and sinus congestion, but it also effectively relieves dry skin and reduces asthma symptoms. Super-efficient evaporative humidification makes for a more consistent humidity level and won’t over-saturate the immediately-surrounding area.