We have a Levoit. Very quiet, compact size. Two filters - one carbon one hepa, no ions. It works very well. Had a honeywell before. It was loud, big, and did not make as big of a difference as the Levoit. Could not find Honeywell filters anymore.
We use two of the smaller style Levoit in the bedroom. One small unit only covers 130 square feet, if I remember correctly. Its cylinder shaped, 13 inches tall and 7.5 inches across.
