Hepa filter: 360 degree filter system HEPA filter, two-layer HEPA filter helps remove pollutants and clean the air. HEPA filter size approx. 215 x 210 mm / 8.46 x 8.27 inches. Replacement HEPA Filter & Activated Carbon Filter for Dyson HP04 TP04 DP04 Air Purifying Two Stage 360 Filter System Pure Cool Purifier FanPackage includes: 2 x activated carbon filters, let the air become purer and fresher and ensure a soothing health. Air Clean Replacement Hepa Filter and Activated Carbon Filter for Dyson TP04 TP05 HP04 HP05 DP04Replacement for HEPA filter and activated carbon filter The package includes 2 HEPA filters and 2 activated carbon filters. To replace your HEPA filters and activated carbon filters. Suitable for Dyson TP04 HP04 DP04 TP05 HP05 Pure Cooling Fan Only (Please confirm your filter size before purchasing).Use Time - HEPA Filter: Recommended replace it every 12 months if you use it for 12 hours. Activated carbon filter: recommended replace every 6 months if you use it for 12 hours.Activated carbon filter: The filters can help your health by providing a fresh, clean environment. They help to save energy costs. Activated carbon filter size approx. 205 x 180 mm.