... negative ion:100,000,000/cm3 ; 4. Purifying rate:99.97% Home Air Ionizer Parameter:1.Rated Voltage: AC 220V/5A ... negative ion:100,000,000/cm3 ; 4. Purifying rate:99.97% ;5.Applying space: 50-60m3 ; 6.Certificate: CE ; Home Air ... speedautomactically according to the auto-detected results.3.Larger than V-36B, with Enhanced features and functionality .4. Adapt air quality ...