HEPA Filter For Dyson Air Purifier Pure Cool Link Fan DP01 DP03 HP00 HP02 HP03. Compatible with Dyson pure hot + cool link HP00 HP01 HP02 HP03 and first generation purifying heaters Pure Hot + Cool Link (part numbers: 305571-01, 305570-01, 307058-01, 308396-01, 308395-01).