The HS-1943 HEPA Filter is a true-HEPA replacement filter for the Ultra-Premium 500 sq. ft. Tower Air Purifier from Crane (EE-5069). It contains a complete HEPA, carbon, photocatalyst, and particle filter set that captures 99% of airborne dust and particles as small as 0.3 microns. Its advanced filtration also helps eliminate household odors and other harmful fumes.