Are smoke, pollen, dust mite detritus, mold spores and pet dander causing your allergies to flair? Indoor air pollution is more of a problem than ever and Hunter HEPAtech air purifiers are allowing all of us to breathe easier. Hunter purifiers, with their permanently charged HEPAtech Electret filters are more effective at capturing 99.97% airborne particles.Their popular slimline styling allows a unit to be placed flush against a wall or in the corner. The whisper quiet Hunter fan draws air into the unit with out excessive noise associated with competitors models. An advanced activated carbon pre-filter reduces cooking, tobacco and pet odors. The HEPAtech 57 changes air up to 6 times per hour and comes with a built-in ionizer that distributes negative ions throughout the room to enhance the cleaning process. This Hunter air purifier is constructed with a mechanical filter change reminder to let you know when its time to change the filters and replacing the filter is quick and easy. The Hunter HEPAtech