Product Description

The Dyson DC31 pre-filter (part number 91706602) is a genuine OEM replacement filter designed specifically for Dyson DC31 cordless handheld vacuum cleaners. This pre-filter captures larger dust and debris particles before they reach the main motor filter, extending filter life and maintaining consistent suction power. A clean pre-filter is critical for optimal DC31 performance and motor longevity.

Constructed from durable filter material, this pre-filter is engineered to withstand repeated cleaning and use in the demanding DC31 handheld platform. It fits precisely into the DC31's filter chamber and maintains the tight seal necessary for effective filtration.

The DC31 pre-filter is not interchangeable with other Dyson cordless models, including the V8, V10, V11, or DC series upright vacuums. Always confirm your model before ordering.

Swiss Boy Vacuum is an authorized Dyson retailer serving the Wasatch Front since 1963. We stock genuine Dyson parts and provide expert guidance on DC31 maintenance and repair. Contact us at 801-298-3656 for questions or to order additional filters and accessories.

Why Choose This Product?

• Genuine OEM Dyson part—ensures perfect fit and performance in DC31 models
• Captures large dust particles—protects the main motor filter from clogging
• Extends filter life—reduces frequency of main filter replacements
• Maintains suction power—keeps DC31 performing at peak efficiency
• Simple maintenance—washable and reusable for long-term value
• Model-specific design—not compatible with V series or DC upright vacuums

Specifications

• Brand: Dyson
• Part Number: 91706602
• Compatible Model: DC31
• Filter Type: Pre-filter

Compatibility

• Dyson Models: DC31

Use Case

The DC31 pre-filter is essential for owners of Dyson DC31 cordless handheld vacuums who want to maintain peak cleaning power and protect their motor filter from premature clogging. Regular pre-filter maintenance—rinsing or replacing every few months depending on use—keeps your DC31 performing reliably for stairs, upholstery, and quick cleanups. If your DC31's suction has diminished or the filter appears heavily soiled, a fresh pre-filter is often the first step in restoring performance.