Quick answer

Replacing the Dyson DC65 hepa filter is a DIY job of about 10 minutes. Compatible hepa filters currently start at $13.95. Replace it Every 12 months under normal use. Full step-by-step below.

The DC65 post-motor HEPA is a lifetime washable filter in most builds, located lower on the machine away from the top pre-filter. Replace it when washing no longer restores it or the media is damaged; a tired post filter both restricts airflow and lets fine dust through.

Compatible HEPA Filter for the Dyson DC65

Prices pulled from Amazon and verified September 2026. “OEM” is a genuine Dyson part; the rest are tested aftermarket options.

PartTypePriceRating
Lemige Replacement Vacuum Filters for Dyson DC41 DC65 DC66 UP13 UP20 UP30 Multi Floor Ball Animal 2 & 3 Vacuums, Part 920769-01&920640-01, 3 Post HEPA Filters & 3 Pre Filters Aftermarket $24.29 4.75★ (8,829) Buy on Amazon
Casa Vacuums 2+1 Filter Kit for Dyson DC41, DC65, DC66 Replacement HEPA Post Filter & Pre Filter. For Animal, Multi Floor and Ball Vacuums. Compare to Part # 920769-01 & 920640-01 Aftermarket $13.95 4.25★ (52) Buy on Amazon
DC41 HEPA Post-Motor Filter & Pre-Motor Filter Kit Replacement Compatible with Dyson DC41, DC65, DC66 Assembly Parts 920769-01 & 920640-01 by LifeSupplyUSA Aftermarket $16.99 4.45★ (49) Buy on Amazon
MZY LLC 13 Pack Replacement Parts for iRobot Roomba 800 900 Series 805 860 870 871 880 890 960 980 985 Vacuum Accessories, Replenishement Kit with 1 Debris Extractor 3 Filters 3 Side Brushes & Screws Aftermarket $18.99
$1.46/ea
4.65★ (0) Buy on Amazon

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About the Dyson DC65

The Dyson DC65 (US Ball Animal / Multi Floor) is a corded upright. Alongside the washable purple pre-motor filter, it has a post-motor HEPA filter that cleans the air leaving the machine — the finer, sealed stage this page covers.

Step-by-Step: Replacing the Dyson DC65 HEPA Filter

1
Power off and unplug
Disconnect the DC65 from the wall first.
2
Locate the post-motor HEPA
Find the HEPA filter housing lower on the machine (separate from the purple pre-filter lid on top).
3
Remove the old filter
Release and lift out the HEPA unit.
4
Fit the new (dry) filter
Seat the new HEPA so it locks flush; if reusing a washed one, be sure it's fully dry.
5
Close and test
Refit the cover, plug in and confirm suction.

⚠ Common mistakes on the DC65

The DC65 mistake is servicing only the purple pre-motor filter on top and forgetting the post-motor HEPA — both need care. The second, as with all Dyson washable filters, is refitting damp: air-dry a full 24 hours.

✓ OEM vs aftermarket for the DC65

Genuine Dyson gives a guaranteed seal; aftermarket HEPA filters are cheap and acceptable when the listing names the DC65 (often bundled DC41/DC65/DC66). Do both filters together for a full refresh.

🔁 How often to replace

The Dyson DC65 hepa filter should be replaced Every 12 months under normal use — sooner with pets or daily heavy use. Signs it's due: Reduced suction, musty odor.

How we made this page: the steps are written for the Dyson DC65 specifically; the compatible-part list is pulled from our parts database and price-checked against Amazon. Last verified September 2026.