Beyond Guardian Air
351 sq. ft. at 4.2 ACH (air changes per hour) or up to 2500 sq. ft. at 1.0 ACH Portable and no installation is required Better than HEPA filtration, ionization, and Uses ActivePure® Technology to reduce up to 99% of contaminants in the air and on surfaces ENERGY STAR Certified, whisper silent operation, cleans 24/7, no ozone MODEL: F159E Meets California ozone emissions limit.