3 Iq Air Health Pro Series Filters Made in the Usa. Hepa Filter, V5 Cell, and Pre Filter. Effectively Trap 99.97% Down to .03 Microns 3 American Made IQ Air replacement Filters 1 Hepa filter, 1 V5 Cell gas and odor filter, 1 Pre Filter Fits IQ Air Pro series Effectively traps particulate 99.97% down to .03 Microns Made 100% in the USA.