Bionaire BAP9700-U PERMAtech Tower Air Purifier Permanent HEPA-type filtration Digital display and electronic controls Four Speed settings Optional Ionizer assists in particle removal Permanent HEPA Type filtration Digital display and electronic controls Four speed settings, Auto-off timer Optional ionizer to assist in particle removal, Smoke CADR: 105 Filter service indicator eliminates guesswork on when filter cleaning is needed, Remote control