... 220V/5A 50Hz 2. Rated Power: 45W 3. Output of negative ion: 100, 000, 000/cm3 4. Purifying rate: 99.9% Air ... 220V/5A 50Hz;2. Rated Power: 45W;3. Output of negative ion: 100, 000, 000/cm3;4. Purifying rate: 99.97%Air ... 220V/5A 50Hz;2. Rated Power: 45W;3. Output of negative ion: 100, 000, 000/cm3;4. Purifying rate: 99.97%;5 ...