1. Low noise.
2. Filter life indicator.
3. Adjustable air velocity.
4. Touch screen control panel.
5. HEPA filter, 99.999% efficiency at 0.3 um.
6. Intelligent timing function, timing range 1h, 2h, 3h for QRJ-168III.
7. QRJ-168III and KJY series could be used to eliminate formaldehyde.
8. Three filters for QRJ-168III: HEPA filter, active carbon filter and sub-high efficiency filter.