**HEPA Filtration Model GSFH1K** . Improved indoor air quality and helps reduce the symptoms associated with respiratory problems . Recirculates air throughout the house . Provides 270 CFM of filtered air. . Installation kit included . True HEPA filter included with each unit . Up to 2,500 sq. ft. capacity . Whole-house HEPA air purification . Two pre-filters included The only whole-house filtration devices on the market to feature an electronic, low voltage wall mounted control switch for convenient operating flexibility.

The GSFH1K is a supplemental whole house filtration system that continually filters indoor air without introducing fresh air. All electric, low voltage device The GSFH1K is very simple to operate: once installed, simply turn the switch (located on the front panel of the unit) to the "normal"setting and use the wall control to select the operation mode (Off, Normal or Boost).This control is equipped with filter maintenance indicators to remind you when it is time to change the HEPA and pre-filters.