Amazon.com - Fette Filter - Pre-Filters Compatible with Dyson Vacuum Filter V6, V7, V8, DC58, DC59 - Compare to Part # 965661-01. (Pack of 4)
HEPA filter conversion for Dyson v6 rear filter - YouTube
2 Pre Filters +HEPA Filter Kit Replacement for Dyson V6,Part # 96566101 96674101 | eBay
Spare Parts for DYSON V6 Vacuum Hose Filter Tools Charger Spares | eBay
Amazon.com: Filter for Dyson V6 Absolute Motorhead Cordless Stick Vacuum, 2 Post Filters, 2 Pre Hepa Filters Replacement, Compare to Parts # 965661-01 & 966741-01 : Home & Kitchen