It’s Not Just A Better Filter, It’s A Germ Stopper Made Exclusively for Indoor Air Professionals Change your filter every 3 months  Exclusive 3-ply antimicrobial filter traps more fine particles and lasts longer Reduces airborne microorganisms by up to 86.5% in one pass Treated with anti-microbial coating – kills microorganisms as they contact the treated filter surface Internal wire construction does not support microbial growth like cardboard or paper frames   IAP Repeat Customers apply code at check out for additional savings.