Keeping your Dyson DC25 running at peak performance means staying on top of pre-motor filter replacement. Our top pick: Filter Replacement for Dyson DC41 DC65 DC66 UP13 UP20 UP30 Hepa Post-Motor Filter & Pre-Motor Filter, Multi Floor, Animal and Ball Vacuums Ball Animal 2 Ball Animal 3. Part#920769-01 & 920640-01.

This guide covers everything: how to identify when your pre-motor filter needs replacing, the difference between OEM and compatible options, and which specific product gives you the best value for the Dyson DC25.

🔍 Does Your Dyson DC25 Need a New Pre-Motor Filter?

Check any symptoms you're experiencing:

About the Dyson DC25

The Dyson DC25 is a corded Ball upright. Its pre-motor filter is the washable purple unit at the top of the machine — the primary filter to keep clean for steady suction and to protect the motor.

🔎 Dyson DC25 pre-motor filter — what to know

The DC25 pre-motor filter is washable foam-and-fleece and lifts out from the top. Replace it only when rinsing no longer restores it — grey after washing, torn, or limp. A tired pre-filter shows as weaker suction and dust on the exhaust.

✓ Buying Advice

Genuine Dyson gives a guaranteed seal; aftermarket purple filters are inexpensive — confirm the listing lists the DC25. A spare keeps you cleaning while one dries.

⚠ Common Mistakes

The DC25 mistake that harms the motor is refitting the filter damp — air-dry a full 24 hours. The second is confusing it with the separate post-motor filter.

$14.99 Best Aftermarket
4.8★ Avg Rating
5,396 Total Reviews

2 Replacement Options for the Dyson DC25

Filter Replacement for Dyson DC41 DC65 DC66 UP13 UP20 UP30 Hepa Post-Motor Filter & Pre-Motor Filter, Multi Floor, Animal and Ball Vacuums Ball Animal 2 Ball Animal 3. Part#920769-01 & 920640-01
Filter Replacement for Dyson DC41 DC65 DC66 UP13 UP20 UP30 Hepa Post-Motor Filter & Pre-Motor Filter, Multi Floor, Animal and Ball Vacuums Ball Animal 2 Ball Animal 3. Part#920769-01 & 920640-01
Compatible ✓ Our Pick
★★★★★ 4.75 · 5,387 reviews Exceptional
Price: premium · Value score: 2.72
Goodsby 4 Pack Replacement Pre-Motor Filter & Post Motor HEPA Filter for Dyson DC25 Animal Ball Vacuum Cleaner Part # 919171-02 & 916188-06 (Set # 2)
Goodsby 4 Pack Replacement Pre-Motor Filter & Post Motor HEPA Filter for Dyson DC25 Animal Ball Vacuum Cleaner Part # 919171-02 & 916188-06 (Set # 2)
Compatible 4-Pack
★★★★★ 4.85 · 9 reviews Well Rated
$5.49 per unit when buying 4-pack
Price: fairly priced · Value score: 2.03
$21.95 $5.49/ea
Buy on Amazon
⭐ Our Pick

Filter Replacement for Dyson DC41 DC65 DC66 UP13 UP20 UP30 Hepa Post-Motor Filter & Pre-Motor Filter, Multi Floor, Animal and Ball Vacuums Ball Animal 2 Ball Animal 3. Part#920769-01 & 920640-01 — Best-rated compatible option

Buy on Amazon

Frequently Asked Questions

How often should I replace the Dyson DC25 pre-motor filter?
Dyson suggests replacing the DC25 pre-motor filter Every 3 months under normal use — sooner with pets or daily heavy use. Signs it's due: Reduced suction. Wash the DC25 purple pre-motor filter monthly and replace it when it won't rinse clean; dry 24 hours before refitting.
Can I just wash the DC25 pre-motor filter instead of replacing it?
Often, yes — many vacuum filters are washable. Rinse under cold water only (no detergent, no hot water), squeeze gently and air-dry fully — a full 24 hours for Dyson filters — before refitting. Replace it when it won't rinse back to clean, the foam crumbles, or the pleats/mesh are damaged; a washable filter still wears out eventually.
Do I have to buy the genuine Dyson part, or will a compatible one work?
Yes — a compatible (aftermarket) pre-motor filter works well in the Dyson DC25 as long as it's made for this exact model. Genuine Dyson gives a guaranteed seal; aftermarket purple filters are inexpensive — confirm the listing lists the DC25. A spare keeps you cleaning while one dries.
How much does a Dyson DC25 pre-motor filter cost?
Compatible pre-motor filter options for the Dyson DC25 start around $14.99. The prices in the table above are checked against Amazon regularly; multipacks usually cost less per unit.
What's the most common mistake when replacing the DC25 pre-motor filter?
The DC25 mistake that harms the motor is refitting the filter damp — air-dry a full 24 hours. The second is confusing it with the separate post-motor filter.