As an Amazon Associate I earn from qualifying purchases.Updated: March 18, 2026
The Carbon Filter in your Winix 5500-2 air purifier is designed to trap odors, gases, and volatile organic compounds (VOCs). Over time, these pollutants accumulate on the filter surface, reducing its effectiveness. Replacing the Carbon Filter regularly ensures your air purifier continues to perform at its best. Neglecting replacement can lead to reduced odor control and a decline in overall air quality.
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Function: Absorbs odors, gases, and VOCs from the air
Signs it needs replacing: Noticeable decrease in odor removal effectiveness, musty or stale smells lingering in the room
OEM vs aftermarket: OEM filters (part number 114090) are designed specifically for your Winix 5500-2. Aftermarket options are often cheaper but may have slightly lower performance.
Installation: Typically involves simply removing the old filter and inserting the new one, following instructions in your device's manual.
Replacement schedule: every 3 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 3 months schedule
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
Winix 5500-2 owners who want to restore their air purifier's performance and enjoy cleaner, fresher air. Owners experiencing reduced odor removal or musty smells.
Not ideal for: If your Winix 5500-2 is significantly old, malfunctioning in other ways besides the Carbon Filter, or you desire new features, full replacement may be a better option.
Good to Know Before Buying
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Always confirm your exact model number (5500-2) 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 Winix 5500-2 Carbon Filter?
The part number is 114090. Always verify this matches your exact model (5500-2) before ordering, as similar models may use different parts.
How often should I replace the Carbon Filter on my Winix 5500-2?
every 3 months
Will aftermarket Carbon Filter replacements work in my Winix 5500-2?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model 5500-2 and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.