Proven clean air technology paired with a robust, high-performance design, the ISO-Aire portfolio of commercial air purifiers helps ensure occupants inside rooms of all sizes are safe from indoor pollutants. Each model is developed with a leading level of protection using 12-inch, medical-grade HEPA filtration (99.99% @ 0.3 microns). Ozone-free bipolar ionization and/or UVC sterilization are optional on most units. Variable speed options range from 400 CFM to 2,000 CFM models.