LEVOIT Tower Air Purifier; With a tower design and three-stage filtration process, the Levoit LV-H133-RBK Tower Air Purifier is a paw-some addition to any large room. This purifier helps to remove mold, pollen, dust and pet dander, and it’s a paw-fect option when you have allergies, pets or both. The tower purifier is suitable for living rooms, offices and other large rooms. Its whisper-quiet operation means you and your furbabies can easily sleep even while it’s running. With a preliminary filter, a filter and an activated carbon filter, this purifier is efficient and effective. Three fan settings allow you to customize the power depending on your needs. Or, set the purifier to the auto mode, where a built-in dust sensor will monitor the air quality and adjust the settings to be exactly what your home needs.