Alpina Air Purifier 3 Filter SF-5066

3 Speed settings: Low / Normal / High Pre-filter HEPA filter Carbon filter With Timer setting: 1/4/8 hour Filter change indicator With air quality sensor Built-in Ionizer With child lock Maximum air flow: 150m³ Coverage Area 30m³ Room Coverage size: 20-30m³ Ion conduct concentration: > 5 million pcs/cm³