Sources checked Sep 2, 2026 · Exact supported model: Winix 5500-2
The short answer
- Exact purifier
- Winix 5500-2
- Official set
- Filter H
- Official SKU
116130
Filter H contains the True HEPA filter and washable AOC carbon filter. The permanent pre-filter is cleaned and kept; it is not included as a replacement part in this set. That package boundary prevents a filter-light reminder from being mistaken for an order to discard every layer.
The verified lookup key includes the “-2” suffix and does not infer cross-fit.
Three layers, three care actions
| Layer | What to do | Approximate timing | In Filter H? |
|---|---|---|---|
| Permanent pre-filter | Clean it and keep it in service. | About every 14 days | No |
| Washable AOC carbon filter | Wash as directed and allow it to dry completely before reinstalling. | Wash about every 3 months; replace with the HEPA set when the Check Filter indicator lights (approximately 12 months). | Yes |
| True HEPA filter | Do not wash; replace it with the set. | About every 12 months | Yes |
Winix describes the replacement interval as approximate and dependent on the operating environment. The user manual also treats the Check Filter indicator as a prompt to replace the HEPA and AOC carbon filters together.
Why “clean” and “replace” must stay separate
The pre-filter needs frequent cleaning without needing a new Filter H set. The AOC carbon filter is washable during its service period, while the True HEPA filter is not. When replacement is due, Filter H supplies the carbon and HEPA pair—not another permanent pre-filter.
Keeping these roles separate answers two different questions: what maintenance can be done today, and which official package should be ordered when the replaceable set reaches the end of its service period.
Frequently asked questions
What filter does the Winix 5500-2 use?
The official replacement is Filter H, SKU 116130.
Is the permanent pre-filter included in Filter H?
No. It remains in the purifier and is cleaned rather than replaced with this set.
Which layer can be washed?
The AOC carbon filter is washable. The True HEPA filter should not be washed.
Does the 12-month interval apply to every home?
No. It is approximate manufacturer guidance; operating conditions can change service life.
Is Filter H the same as Filter A?
This page verifies only Filter H / 116130 for the exact 5500-2 and does not claim interchangeability with Filter A.
Manufacturer sources
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