3 Packs. Nispira True HEPA Filter Replacement appropriate with Ibuki Air Purifier C102 MA-01CW, MA-18, Okaysou AirMic4S

high-grade meets or exceeds leading national brand.. Dimension 6.75 x 6.75 x 5.4". Suggest to replace filter every 6 months to optimize performance Easy to install. 3 packs included. True-HEPA captures up to 99.97% of particles, as small as 0.3 microns. Nispira premium True HEPA with Preliminary filter replacement appropriate with Ibuki air purifier model C102 Preliminary filter traps large particles such as hair, dust