Winix Air Purifier Filter Replacement Canada: Real Costs & Where to Buy
OEM vs third-party Winix replacement filters — Amazon.ca vs Costco.ca. A complete per-model breakdown including Filter A (#115115), Filter S, Filter H, and Filter T. What Canadian filter ownership actually costs per year.
6 min read 2026-05-25winixairpurifier.ca
Air purifier filter costs are often more than the unit over a 5-year lifetime. Here's what every Winix model sold in Canada actually costs to maintain — OEM and third-party — plus where to buy for the lowest price.
Understanding Winix filter types
Every Winix unit uses the same four-stage stack: washable mesh pre-filter (permanent), activated carbon, True HEPA, and PlasmaWave (electronic, no replacement). Only the carbon and HEPA need replacing.
- Flat carbon sheet (C545, A231, A230): replace every 3 months. Budget ~$15–20 CAD per replacement.
- Pelletized AOC carbon (5510, AM90, 9800): replace every 3–12 months depending on odour load. Better odour control than flat sheets.
- All-in-one (HEPA + carbon combined) (C610, T810): replace once per year. Simpler — one filter, one purchase.
- True HEPA (all models): replace every 12 months.
Filter part numbers by model
| Model | Filter name | Part number | HEPA life | Carbon life |
|---|---|---|---|---|
| C545, A231 | Filter S | 1712-0096-00 | 12 months | 3 months |
| C610 | Filter T (All-in-One) | 1712-0116-00 | 12 months | 12 months |
| 5510 | Filter H | 116130 | 12 months | 3 months |
| AM90, 9800 | Filter A | 115115 | 12 months | 3 months |
| T810 | Filter Q (360°, All-in-One) | 1712-0096-00 | 12 months | 12 months |
| 5500-2 (discontinued) | Filter A | 115115 | 12 months | 3 months |
Annual cost by model (Canada)
| Model | OEM cost / year | Costco 2-pack (amortized) | Third-party / year |
|---|---|---|---|
| C545 | ~$65–90 CAD | ~$41 CAD | ~$35–45 CAD |
| C610 | ~$45–55 CAD (all-in-one) | N/A (not at Costco) | ~$28–38 CAD |
| 5510 | ~$60–80 CAD | N/A | ~$35–45 CAD |
| AM90 / 9800 | ~$55–70 CAD | ~$45 CAD (via 2-pack) | ~$32–42 CAD |
| T810 | ~$50–60 CAD (all-in-one) | N/A | ~$30–40 CAD |
Where to buy Winix filters in Canada
- Costco.ca / Costco warehouses: Best price for C545 and AM90/9800 filter 2-packs ($89.99 CAD). The two-year supply math is hard to beat.
- Amazon.ca: Best for single-pack OEM filters, Subscribe & Save available. Ships from Canadian warehouses; typically 1–2 days with Prime.
- Winix Canada website: Full OEM selection but retail pricing; useful for hard-to-find filter types.
- Canadian Tire / Best Buy: Limited selection, often higher priced. Useful for same-day pickup.
Third-party filters: PUREBURG and Lemige make compatible filters for most Winix models at 40–50% less than OEM. Check the part number matches your model. Performance is comparable for HEPA; carbon quality varies more between brands.
Signs your filter needs replacing early
- Air quality indicator stays red even with the room vented (HEPA saturated)
- Noticeable reduction in airflow at the same speed setting
- Musty smell from the unit (carbon filter exhausted)
- You ran the unit on max through an extended wildfire event (shorten the replacement interval)
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Every model sold in Canada — independently tested with real CADR data.
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