PUREBURG Replacement Filter Compatible with Aucleia KQ-31 KQ-31A & AIRTOK KQ-31, KQLKJ KQ-31 & iooo K31 Air Purifiers,4-Pack H13 HEPA Activated Carbon For Air Clean Dust VOCs Odor

["4-Pack, 3-Stage Filtration ReplacementFilters (A replacement filter is a combination unit that contains the mesh pre-filter, High-efficiency H13 filter, and Activated Charcoal all in one.)","Compatible with Aucleia KQ-31 KQ-31A, AIRTOK KQ-31, KQLKJ KQ-31 & iooo K31 Air Purifiers ✅✅✅Please confirm the machine model and filter size before purchasing✅✅✅","H13 HEPA Capture up to 99.97% of particles as small as 0.3 microns. This includes dust, pet dander and other minute particles ,Activated Carbon reduce Chemicals VOCs, Odor smoke,PM2.5,common household bad smell, Fine Mesh Layer Prevents large particles such as dander,Pet hair.","Please replace regularly to keep your machine fresh and clean. For the best performance, clean the filter once a month with a soft brush gently or with a vacuum cleaner.","Top Notch Quality Used for Maximum Customer Satisfaction Guaranteed. Every Product made by PUREBURG is Tested through Rigid Examinations and QC Procedures."]