4 Pack C545 True HEPA Replacement Filter S Compatible with Winix C545 Air Purifier
- Air Purifier Filter
- Paper
- 4
- 4
A sound way to stock the C545 for several years at a fraction of the manufacturer's per-filter cost. Order carbon prefilters separately if odor control is part of why you run the unit.
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How it ranks among the 18 air purifier filters we track
4.7★ across 1,300 Amazon ratings, Bayesian-smoothed toward the category average.
1,300 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 18 air purifier filters we track - how the scorecard works · full air purifier filters data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 15, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Four H13 grade True HEPA filters made to replace Winix part 1712-0096-00, the Filter S used in the C545 air purifier. Each measures about 13 inches tall by 11 inches wide and an inch thick, with the media built on FSC-certified paper. This pack contains the HEPA element only, with no carbon prefilters included.
- 4 pack, H13 grade True HEPA
- Replaces Winix part 1712-0096-00
- Roughly 13 x 11 x 1 inches per filter
- Media built on FSC-certified paper
Who it's for
Specifically for Winix C545 owners, including the Costco-sold variant, who want a multi-year filter supply at once. Owners of other Winix models such as the 5500-2 or AM90 should check their own part number, since Filter S is not a shared size across the range.
What buyers say
From Amazon customer reviews.
Owners report the filter sliding in without resistance and feeling equivalent to the factory element, with no change in fan noise after swapping. Several bought the four pack specifically to escape a manufacturer auto-ship subscription and said it saved money, and one noted they had no need for the carbon prefilters bundled with OEM kits. Odor and freshness results are described as good. The dissenting view came from a buyer who thinks replacement filters generally are overpriced and now prefers a DIY Corsi-Rosenthal box on a smart plug timer for better value.
Strengths and trade-offs
Drawn from this product's published specifications.
- Four filters covers several years of use
- Drops into the C545 without modification
- Costs well below manufacturer replacement pricing
- No tools needed to change
- HEPA only, carbon prefilters not included
- Fits the C545 alone, not other Winix models
- Aftermarket rather than Winix branded
Performance notes
H13 media captures 99.97 percent of particles down to 0.3 microns, which covers dust, pollen and smoke particulate. Replacement interval runs 6-12 months depending on how hard the unit works, and a loaded filter is the usual reason a purifier gets louder or moves less air rather than any fault in the fan. The swap needs no tools: open the unit, pull the spent element, seat the new one.
Specifications
| Brand | Colorfullife |
|---|---|
| Model | C545 |
| Dimensions & fit | |
| Item Weight | 8 ounces |
| Item Dimensions L x W x Thickness | 13 × 11 × 1.7 inches |
| Construction & materials | |
| Material Type | Paper |
| Air Filter Construction | Pleated |
| Compatibility & installation | |
| Compatible Air Purifier Models | Winix C545 |
| Compatible Devices | Air Purifier |
| Included components | |
| Unit Count | 4 |
| Included Components | Filter For Winix C545 Replacement Filter |
| Warranty & support | |
| Warranty Description | None |
| Other details | |
| Number of Items | 4 |
| Common Applications | Appliances |
| Item Type Name | Filter For Winix C545 Replacement Filter |
| Product Grade | new |
Other Colorfullife air purifier filters
How it compares
This product against the closest alternatives we track in air purifier filters.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| 4 Pack C545 True HEPA Replacement Filter S Compatible with Winix C545 Air PurifierThis product | 4.7 / 5 | 1,300 | 3.9 / 5 |
| Levoit Vital 100 Air Purifier Genuine Replacement FilterLevoit | 4.8 / 5 | 6,200 | 4.5 / 5 |
| Honeywell HEPA Air Purifier Filter Replacement Kit for HPA300Honeywell | 4.8 / 5 | 4,505 | 4.5 / 5 |
| PuroAir 240 Replacement FilterPuroAir | 4.8 / 5 | 3,789 | 4.3 / 5 |
| Nispira F1 C01 T02 HEPA Replacement Filter for 3M Filtrete Room Air Purifier FAP-C01-F1Nispira | 4.6 / 5 | 928 | 4.2 / 5 |
Similar air purifier filters from other brands
Questions about the Colorfullife C545
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Do these filters fit the Winix C545 sold at Costco?
Yes. Several buyers report they fit the Costco-purchased C545 units the same as the ones bought elsewhere.
Does this 4 pack include the Winix C545 carbon prefilters?
No. It contains the Filter S HEPA element only, matching part number 1712-0096-00. Carbon prefilters must be bought separately.
How often should the Winix C545 HEPA filter be replaced?
Every 6-12 months depending on usage. Heavier runtime, pets or smoke will push you toward the shorter end of that window.