Review on High-performance 2 Pack Filters for Shark Rocket DeluxePro TruePet HV319Q, HV320, HV320W, HV320C, HV321, HV322, HV322Q HV325, HV324Q, UV330, UV422, UV425CCO Vacuum - Genuine Replacement Parts # 1080FTV320 & 1084FTV320 by Heather Coleman

I like having extra filters so I don't have to wait for one to dry. My Shark is great, but it definitely loses suction when the filter gets dirty. They say to change it once a month but maybe my house is more dusty than others and I need to change it about every 3 weeks. With these additional filters, I can change them often without missing a single opportunity in the household. I hang them on a hook in the laundry room to dry and make them invisible.