Winix AUS-0850AAPU filter
The Winix AUS-0850AAPU takes the Winix GQ Filter Pack (Compact 4-stage AUS-0850AAPU) (part GQ-FILTER) as its filter; replace it every 12 months; Australian sellers list it from A$99.00 as of 1 August 2026. Fitment confirmed against the manufacturer's compatibility list.
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Your air purifier
Winix AUS-0850AAPU
Air purifier · Compact 4-stage
Takes this filter
GQ Filter Pack (Compact 4-stage AUS-0850AAPU)
GQ-FILTER
The right filter for AUS-0850AAPU
Winix GQ Filter Pack (Compact 4-stage AUS-0850AAPU)
- Replace every 12 months
- Fits inside the fridge
- Fits 1 model
The one-year filter set for the Winix Compact 4-stage (AUS-0850AAPU): a 360-degree all-in-one fine-mesh pre-filter, True HEPA filter and activated-carbon filter.
Reduces
- Fine dust, pollen and allergens
- Odours and gases (activated carbon)
- Pack
- All-in-one pre-filter, HEPA and carbon filter
- Lasts
- 12 months
Every number this part goes by
- Retail name:
- GQ
Where to buy
Every seller we track for this part, cheapest first. Genuine is the manufacturer's own part; compatible is a third-party filter made to fit. Prices are re-checked daily where the seller publishes them. Last checked 1 August 2026.
How long it lasts
Replace every 12 months — the appliance's filter light tells you when.
After fitting: After fitting, hold the filter reset button until the filter light goes out.
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point of the filter.
Not due yet?
This filter is due every 12 months. We'll email you when it's time — free, no spam.
Fitting it
A few minutes, no tools. Watch it done, then follow the steps.
- 1Switch the purifier off and unplug it.
- 2Twist or lift the top cover off and lift the old cylindrical filter set out.
- 3Take the new filters out of their plastic bags and drop them in with the pull tab up.
- 4Put the cover back, plug in, and hold the filter reset button until the filter light goes out.
About your Winix AUS-0850AAPU
Winix air purifier, air purifier — Compact 4-stage. Its filter is the GQ Filter Pack (Compact 4-stage AUS-0850AAPU), part GQ-FILTER, changed every 12 months.
Checking the model number: Look at the rating label on the back or the underside of the purifier: the model is the type code (AUS-1250AZPU, WXAP800W, 5500-2), not the marketing name. The filter pack code (GT, GI, GQ…) is printed on the old filter's frame.
Fits these models
Winix1 model
Common questions
- Which filter fits the Winix AUS-0850AAPU?
- The Winix AUS-0850AAPU takes the Winix GQ Filter Pack (Compact 4-stage AUS-0850AAPU) (part GQ-FILTER). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my Winix AUS-0850AAPU?
- Every 12 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the GQ-FILTER in Australia?
- We track 1 Australian seller for the GQ-FILTER; the lowest listed price when we last checked was A$99.00 at ausclimate. Prices are re-checked daily and dated on this page.
- How do I fit the GQ-FILTER in a Winix AUS-0850AAPU?
- No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
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