As an Amazon Associate I earn from qualifying purchases.Updated: March 19, 2026
The HEPA Filter in your iRobot Roomba i4 is essential for trapping dust mites, pollen, pet dander, and other allergens. Over time, the filter becomes clogged, reducing its effectiveness and potentially impacting your vacuum's performance. Replacing the HEPA filter regularly ensures optimal cleaning efficiency and air quality.
Check current pricing, reviews, and availability on Amazon.
Function: Captures fine particles like dust mites, pollen, and pet dander to improve air quality.
Signs it needs replacing: Reduced suction power, more frequent emptying of the dustbin, or noticeable dust build-up on floors.
OEM vs aftermarket: OEM parts guarantee compatibility but are typically pricier. Aftermarket options are often cheaper but double-check reviews for fit and performance.
Installation: Generally straightforward. Usually involves unclipping or unscrewing a panel to access the filter compartment, removing the old filter, and inserting the new one.
Replacement schedule: every 2 months
Compatibility warning: always verify part number matches your exact model before ordering
Pros & Cons
Pros
✓ Restores device to original performance without buying a new unit
✓ Significantly cheaper than a full device replacement
✓ Multiple options available from OEM and aftermarket sellers
Cons
✗ OEM parts cost more than third-party alternatives
✗ Wrong part number will not fit — model verification is essential
Common Use Cases
Scheduled maintenance: replacing on the every 2 months schedule
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
This replacement HEPA Filter is for iRobot Roomba i4 (R4000) owners experiencing reduced suction or noticing dust build-up despite regular cleaning. Replacing the filter can restore your device's performance and extend its lifespan.
Not ideal for: If your Roomba i4 is experiencing multiple malfunctions or showing signs of severe wear and tear, a full replacement may be more cost-effective in the long run.
Good to Know Before Buying
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Always confirm your exact model number (R4000) before ordering. Part numbers vary between model variants and production years. Check the label on your device or original documentation to be sure.
Frequently Asked Questions
What is the part number for the iRobot Roomba i4 HEPA Filter?
The part number is 4640235. Always verify this matches your exact model (R4000) before ordering, as similar models may use different parts.
How often should I replace the HEPA Filter on my iRobot Roomba i4?
every 2 months
Will aftermarket HEPA Filter replacements work in my iRobot Roomba i4?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model R4000 and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.