PUREBURG Replacement Filter Compatible with ULTTY Bladeless Tower Fan

COMPATIBILITYCompatible with ULTTY R021, R21, R020 and R20 bladeless tower fan and air purifier models, please verify your model before ordering | 2-PACK REPLACEMENT SETIncludes 2 complete PUREBURG replacement filters for convenient routine filter changes and scheduled maintenance | H13 HEPA MEDIAPleated H13 HEPA media provides a broad filtration surface for everyday household dust and fine particle filtration | OUTER PRE-FILTEROuter mesh layer provides the first filtration stage for larger household debris before air reaches the pleated HEPA media | CYLINDRICAL DESIGNRound filter construction provides filtration around the air intake while supporting consistent airflow during normal operation