9 Best Replacement Filters for Winix Air Purifiers (October 2026)

The best Winix air purifier replacement filters include the Genuine Winix 115115 Replacement Filter for original Filter A sets, the Genuine Winix 116130 Replacement Filter H for the 5500-2, and the isinlive 115115 Replacement Filter A Size for a multi-model Filter A fit.

On this page (4 sections)

1. Which Winix replacement filter is best for each model?
2. How do Winix filter families differ?
3. How should you choose between genuine and aftermarket filters?
4. Which Winix filter set should you choose?

The best Winix air purifier replacement filters are the ones matched to your purifier’s model and filter family. The genuine 115115 Filter A set fits several models including the C535, while the genuine 116130 Filter H set is made for the 5500-2.

Winix uses different filter families across its air purifiers. Before you buy, find the model number on your unit and compare it with the compatibility details below.

A similar-looking filter or the same brand name does not confirm a fit.

Our picks at a glance

1. 1
   Best for original Filter A sets

   Genuine Winix 115115 Replacement Filter

   9.7/10 our score

   See it on Amazon
2. 2
   Best for the 5500-2

   Genuine Winix 116130 Replacement Filter H

   9.6/10 our score

   See it on Amazon
3. 3
   Best for a multi-model Filter A fit

   isinlive 115115 Replacement Filter A Size

   9.5/10 our score

   See it on Amazon

4. 4

   Smilyan 116130 Filter H Replacement for Winix

   Best for a two-set Filter H supply
   Check it
5. 5

   JORAIR Replacement Filter Size O

   Best for A230 and A231
   Check it
6. 6

   XY100T 115115 HEPA Replacement Filter

   Best for a multi-pack Filter A alternative
   Check it
7. 7

   Colorfullife C545 HEPA Replacement Filter S

   Best for C545 Filter S replacements
   Check it
8. 8

   Funmit 2 Pack C545 Replacement Filter S

   Best for a smaller Filter S pack
   Check it
9. 9

   iSingo C610 Replacement Filter Z for Winix

   Best for the C610
   Check it

Which Winix replacement filter is best for each model?

Match the filter family to your purifier first, then choose between genuine and aftermarket sets. These picks cover several common Winix families, but they are not interchangeable.

1

Genuine Winix 115115 Replacement Filter: Best for original Filter A sets

9.7/10Our score

• Filter A family
• Compatible with C535, 5300-2, 6300-2 and P300
• True HEPA and carbon filters
• Winix recommends changing HEPA every 12 months and carbon every 3 months

This genuine Winix Filter A set fits several older and named Winix models. Its HEPA and carbon replacement intervals differ, so plan to change those parts separately.

See it on Amazon

Pros

• Genuine Winix set
• Broad stated model compatibility
• Includes multiple carbon filters

Cons

• Filter family does not fit every Winix purifier
• Carbon filters have a shorter recommended interval

The genuine Winix 115115 set is the most flexible pick in this group for models that use Filter A. Its stated compatibility includes the C535, 5300-2, 6300-2, P300, 5300, 6300 and AM90.

The set combines a True HEPA filter with four carbon filters. Winix recommends changing the HEPA filter every 12 months and the carbon filter every 3 months, so expect to handle the carbon layer more often.

Choose this set if your purifier is one of the listed Filter A models and you want an original Winix replacement. For a closer look at this model family, see our best Winix C535 replacement filter picks.

Best fit: a genuine Filter A replacement set for supported models. Check the model number before ordering, especially if your purifier is not named above.

2

Genuine Winix 116130 Replacement Filter H: Best for the 5500-2

9.6/10Our score

• Filter H family
• Made for Winix 5500-2
• True HEPA and AOC carbon filter
• Winix says the set lasts one year

This genuine Filter H set is the model-specific pick for the Winix 5500-2. It includes HEPA and odor-control carbon filtration.

See it on Amazon

Pros

• Genuine Winix filter
• Made for the 5500-2
• Includes AOC carbon filtration

Cons

• Compatibility is stated for the 5500-2

The genuine Winix 116130 Filter H set is made for the 5500-2. It pairs a True HEPA filter with an AOC carbon filter for odor control.

Winix describes this as a one-year replacement set and says the original filter provides correct airflow. If you own a 5500-2, this is the direct genuine option in the roundup.

Aftermarket Filter H packs are available too, including a two-set option below. Compare the included filter types and the models named for compatibility.

Our best Winix 5500-2 replacement filters guide focuses on that purifier.

Best fit: owners of the 5500-2 who want the original Winix filter set.

3

isinlive 115115 Replacement Filter A Size: Best for a multi-model Filter A fit

9.5/10Our score

• 115115 Filter A family
• Stated compatibility includes C535, 5300-2, P300 and AM90
• HEPA replacement set
• Brand recommends replacement every 10–12 months

This aftermarket Filter A set names a wide range of compatible Winix models. Confirm your exact model and whether the set includes the carbon filters you need.

See it on Amazon

Pros

• Names several compatible models
• Four HEPA filters in the set
• No tools required for installation, according to the brand

Cons

• Carbon filters are not listed among the set contents

The isinlive 115115 set is an aftermarket Filter A option with a broad model list. It names the C535, 5300-2, 6300, 5300, 6300-2, P300 and AM90, among others.

The pack contains four HEPA filters. It does not name carbon filters in its contents, so check whether you need a separate carbon layer as well.

That distinction matters if you are replacing a complete set rather than the HEPA filter alone.

This choice can suit a household that wants several HEPA replacements at once. Compare the exact purifier model and filter family before choosing it over the genuine Winix set.

Best fit: multiple HEPA replacements for a supported 115115 model.

4

Smilyan 116130 Filter H Replacement for Winix: Best for a two-set Filter H supply

9.5/10Our score

• 116130 Filter H family
• Compatible with 5500-2 and AM80
• Two HEPA filters and two carbon filters
• Rectangular slide-in filters

Smilyan’s aftermarket Filter H pack includes two HEPA filters and two carbon filters. Its stated compatibility covers the 5500-2 and AM80.

See it on Amazon

Pros

• Includes two of each filter type
• Names two compatible models
• Slide-in mounting

Cons

• Aftermarket brand rather than Winix original

Smilyan’s 116130 Filter H set includes two HEPA filters and two activated carbon filters. Its stated compatibility covers the Winix 5500-2 and AM80.

That two-set configuration can be useful if you prefer to keep a spare set ready. The genuine Winix Filter H set is the simpler match for 5500-2 owners who want an original part, while Smilyan names the AM80 as well.

The pack uses slide-in filters and a rectangular shape. Confirm your unit model before ordering because the H family does not fit every Winix purifier.

Best fit: owners of a compatible 5500-2 or AM80 who want two replacement sets.

5

JORAIR Replacement Filter Size O: Best for A230 and A231

9.4/10Our score

• Size O family
• Compatible with A230 and A231
• Pre-filter, HEPA and activated carbon stages
• Two filters in the pack

This aftermarket Size O filter set is made for the A230 and A231 family. It combines pre-filter, HEPA and activated carbon stages in each canister.

See it on Amazon

Pros

• Names A230 and A231 compatibility
• Three filtration stages
• Two filters per pack

Cons

• Does not fit the other filter families in this roundup

JORAIR Size O filters are made for the Winix A230 and A231. Each all-in-one filter combines a pre-filter, HEPA stage and activated carbon layer, and the pack contains two filters.

This is a different family from Filter A, H or S. If your purifier is an A231, use the model-specific guide to compare more options: best Winix A231 filter replacement.

The brand recommends replacing the all-in-one canister every 12 months. Check the part number and the purifier model together, since the product information references more than one part number.

Best fit: a two-pack for A230 or A231 owners who want all three filter stages in one canister.

6

XY100T 115115 HEPA Replacement Filter: Best for a multi-pack Filter A alternative

9.3/10Our score

• 115115 Filter A family
• Stated compatibility includes C535, 5300-2, P300 and AM90
• Three HEPA filters and three carbon pre-filters
• Brand recommends replacing HEPA every 6–8 months

XY100T offers a multi-pack aftermarket option for the 115115 family. Check that your model is named and follow the replacement schedule that suits your use.

See it on Amazon

Pros

• Includes HEPA and carbon pre-filters
• Names several compatible models
• Multiple replacement sets in one pack

Cons

• Brand’s suggested intervals vary by filter type

XY100T’s aftermarket 115115 set includes three HEPA filters and three carbon pre-filters. Its compatibility list names models such as the C535, 5300, 5300-2, 6300, 6300-2, P300 and AM90.

This pack offers multiple replacements for the Filter A family. XY100T recommends changing its HEPA filter every 6–8 months and its pre-filter every 2–3 months, which differs from Winix’s schedule for the genuine 115115 set.

Use the model list to confirm the fit, then consider how often you want to replace each layer. For a D480-specific comparison, see best Winix air purifier D480 replacement filters.

Best fit: supported Filter A models where you want several HEPA and carbon pre-filter replacements.

7

Colorfullife C545 HEPA Replacement Filter S: Best for C545 Filter S replacements

9.2/10Our score

• Filter S family
• Compatible with Winix C545
• Four filters in the pack
• Brand suggests changing every 6–12 months

This Filter S pack is specified for the C545. It is a straightforward choice when you need several replacement filters and have confirmed your purifier uses this family.

See it on Amazon

Pros

• Four filters in the pack
• Names the C545 as compatible
• Slide-in mounting

Cons

• Compatibility is stated for the C545

Colorfullife’s Filter S set is specified for the Winix C545. It includes four filters, and the brand suggests replacing them every 6–12 months depending on use.

Filter S is also associated with part numbers 1712-0096-00 and 2522-0058-00. The model fit is the key check: this is not a substitute for the 115115 Filter A or 116130 Filter H families.

Choose this set if your unit is a C545 and you want four replacements in one pack. If you are matching a part number from an older filter, verify the purifier model too.

Best fit: C545 owners looking for a four-filter pack.

8

Funmit 2 Pack C545 Replacement Filter S: Best for a smaller Filter S pack

8.5/10Our score

• Filter S family
• Compatible with C545, B151, P150 and 9300
• Two replacement filters
• Brand recommends replacement every 6–12 months

Funmit’s two-pack is an aftermarket Filter S option for several named models. Its stated compatibility is broader than the C545 alone, so verify the model before ordering.

See it on Amazon

Pros

• Names four compatible models
• Two filters in the pack
• Brand says installation needs no tools

Cons

• Does not include a separate carbon pre-filter in the stated pack contents

Funmit offers a two-pack of Filter S replacements and names the C545, B151, P150 and 9300 as compatible. The brand identifies it as a non-OEM replacement for Winix S Filter part numbers 1712-0096-00 and 2522-0058-00.

The smaller pack can make sense if you need fewer spares than the four-pack above. Its stated contents are two replacement filters, so check whether you also need a separate carbon pre-filter.

Our best Winix 2522-0058-00 replacement filters guide covers that part-number family in more detail.

Best fit: a smaller Filter S pack for one of the named compatible models.

9

iSingo C610 Replacement Filter Z for Winix: Best for the C610

8.3/10Our score

• Filter Z family
• Made for Winix C610
• Pre-filter, HEPA and activated carbon layers
• Two filters in the pack

This aftermarket Filter Z set is made for the C610. Its all-in-one design combines pre-filter, HEPA and activated carbon layers.

See it on Amazon

Pros

• Names the C610 as compatible
• Three filtration layers
• Two filters in the pack

Cons

• Only compatible with the C610 according to the brand

iSingo’s Filter Z set is made for the Winix C610. Each replacement combines a pre-filter, HEPA filter and activated carbon filter, with two filters included in the pack.

This is the most model-specific option in the roundup. The brand says the filters are built to last 3–6 months, so use your purifier’s indicator and the replacement guidance for your own use conditions.

Choose it only if your unit is a C610. Filter Z is not a general Winix size, and the other families here are not listed as compatible with the C610.

Best fit: C610 owners who want two all-in-one replacement filters.

How do Winix filter families differ?

Winix replacement filters are grouped by family and model, so the family label is a useful cross-check after you identify your purifier. The main families in this guide serve different model groups.

• 115115, Filter A: includes models such as C535, 5300-2, 6300-2, P300 and AM90.
• 116130, Filter H: the genuine set is made for the 5500-2; an aftermarket set also names AM80.
• Filter S: used for the C545, with some aftermarket sets also naming B151, P150 and 9300.
• Size O: stated for A230 and A231.
• Filter Z: made for the C610.

The filter stages also vary. Some sets include separate HEPA and carbon filters, while Size O and Filter Z options here combine several stages in an all-in-one canister or filter.

Carbon helps address odors, while the pre-filter catches larger particles. Learn what a charcoal filter does in an air purifier and what a pre-filter does before deciding whether your replacement set needs those layers.

How should you choose between genuine and aftermarket filters?

Choose genuine Winix when you want a Winix-made replacement for a named model, and consider aftermarket filters when their model list, pack contents and replacement guidance suit your needs. Either way, confirm the fit before buying.

The genuine 115115 and 116130 options in this roundup are made by Winix for their stated models. Aftermarket options from isinlive, Smilyan, JORAIR, XY100T, Colorfullife, Funmit and iSingo offer different pack sizes or name additional compatible models.

Compare the details that affect your replacement:

• Model match: use the model number printed on your purifier and match it against the filter’s compatible-model list.
• Filter family: check the number or letter, such as 115115, 116130, S or Z.
• Set contents: see whether the pack includes HEPA only, carbon filters or a combined filter.
• Replacement interval: follow the guidance for the specific brand and filter type.
• Quantity: decide whether a two-pack or larger set makes sense for your replacement schedule.

When model names or part numbers conflict, pause and confirm compatibility before ordering. A filter family that fits one Winix purifier may not fit another.

Which Winix filter set should you choose?

Choose the genuine 115115 set for a supported Filter A purifier when you want an original Winix replacement, and the genuine 116130 set for the 5500-2. For C545, A230/A231 and C610 models, pick the matching Filter S, Size O or Filter Z option after checking the exact model.

For a multi-model Filter A aftermarket set, compare isinlive and XY100T by the included filters and replacement intervals. For the 5500-2, Smilyan provides two HEPA and two carbon filters in one pack.

Your purifier’s model number should decide the purchase. Once the model and filter family match, compare the set contents and choose the replacement schedule you can maintain.

Our top 3 picks at a glance

1. 1
   Best for original Filter A sets

   Genuine Winix 115115 Replacement Filter

   9.7/10 our score

   See it on Amazon
2. 2
   Best for the 5500-2

   Genuine Winix 116130 Replacement Filter H

   9.6/10 our score

   See it on Amazon
3. 3
   Best for a multi-model Filter A fit

   isinlive 115115 Replacement Filter A Size

   9.5/10 our score

   See it on Amazon

Frequently asked questions

How do I find the right Winix replacement filter?

Check the model number on your purifier, then match it to the filter family and compatible models. Common families in this guide include 115115 Filter A, 116130 Filter H, Filter S for the C545, Size O for A230 and A231, and Filter Z for the C610.

Do not choose by brand name alone.

Are genuine Winix filters better than aftermarket filters?

Genuine Winix filters are made by Winix for the stated purifier models. Aftermarket sets can offer different pack sizes or name additional compatible models, but compatibility and included filter types vary.

Compare the model list and set contents, then choose the fit and replacement schedule that suit your purifier.

What do Winix filter letters A, H, S, O and Z mean?

The letters identify filter families used by different Winix purifiers. They are not interchangeable across all models: Filter A is associated here with models such as the C535, Filter H with the 5500-2, and Filter S with the C545.

Use your purifier’s model number to confirm the family.

Do Winix replacement filters include carbon filters?

Some sets include carbon filters and some are described as HEPA-only. The genuine 115115 set includes carbon filters, while the isinlive 115115 pack is described as four HEPA filters.

Check the contents for your chosen set, especially if you want to replace the odor-control layer too.

How often should I replace a Winix air purifier filter?

Follow the guidance for your purifier and filter type. Winix recommends changing the genuine 115115 HEPA filter every 12 months and its carbon filter every 3 months; other brands give different intervals.

Usage and room conditions can affect how quickly a filter needs attention.