Filters for Every Winix Purifier

Winix Air Purifier Filters

Browse Winix replacement filters grouped by fit, from compact Filter S cartridges to large whole-room Filter B and X2 options. Compare sizes, guard layers and current prices to land on the filter your unit actually takes.
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Filter S – 1712-0096-00 — the standard replacement cartridge for compact Winix units
At $44.99, down 25% from $59.99, this is the plain replacement cartridge for smaller Winix units. It restores the pre-filter, carbon and True HEPA (H13) stages that capture 99.97% of airborne particles, so you keep the same three-stage cleaning without paying for an added guard layer.
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Filter S +AllergenGuard — Filter S cartridge with extra pollen and allergen defense
Priced at $54.99 after 27% off, this Filter S variant adds an AllergenGuard layer aimed at pollen and seasonal triggers. Choose it when spring counts matter more than price alone; it costs $10 more than the plain Filter S but keeps the same compact fit and True HEPA core.
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Filter S +PetGuard — Filter S cartridge built for households living with shedding pets
Homes with cats and dogs usually lean on the carbon stage most. This Filter S version, $54.99 at 27% off from $74.99, adds PetGuard filtering aimed at dander and pet odors, so a bedroom or entryway unit stays fresher between filter changes without changing its footprint.
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Filter S +SmokeGuard — Filter S cartridge with added odor and smoke reduction layers
Cooking smoke, wildfire haze and lingering odors are what SmokeGuard targets. The filter is $54.99, a 27% drop from $74.99, and it fits the same compact Winix models as the standard Filter S, so upgrading is a swap rather than buying a new unit for the room.
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Filter A – 115115 — the wide-format replacement filter for larger Winix purifiers
Marked down 35% from $84.99 to $54.99, Filter A suits the larger Winix models that cover bigger living spaces. The wider surface area moves more air through the carbon and True HEPA stages, which is what you want in an open living room rather than a small bedroom.
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Five filters to start with

This first lineup pairs two compact cartridge sizes with the wide Filter A, so match your unit’s fit first, then compare which guard layer you need.
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Filter A +AllergenGuard — wide-format filtration with added pollen defense for larger rooms

At $64.99, 32% below $94.99, this is the larger Filter A format with an added AllergenGuard layer. It fits Winix purifiers sized for bigger rooms and adds pollen-focused filtration on top of the carbon and True HEPA (H13) stages, so households managing seasonal counts get extra help without giving up room coverage.
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The rest of the filter shelf

Filters matched to pets, smoke and whole-house units

Filter A +PetGuard — wide-format filter with PetGuard for pet dander and household odors

Pet owners usually replace filters most often, so the discount matters. This Filter A version is $64.99, down 32% from $94.99, and it adds PetGuard filtering on the wide format that suits larger rooms. Dander and pet odors are handled by the added layer plus the carbon stage underneath.
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Filter A +SmokeGuard — wide-format filter with SmokeGuard for cooking and wildfire smoke

For kitchens and smoke-prone areas, this Filter A option carries SmokeGuard filtering on the wide cartridge. It is $64.99 at 32% off from $94.99, and it matches the same larger Winix models as the standard Filter A, so the choice comes down to which odor type you face most.
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Filter H – 116130 — compact-format replacement filter for specific Winix purifier models

Filter H is the value pick of this group: $54.99 after a 35% cut from $84.99. It is a direct replacement for Winix models that take the 116130 cartridge, and like the rest of the line it carries pre-filter, carbon and True HEPA (H13) stages. Check your unit's model number before ordering.
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Filter R – 1712-0118-00 — replacement filter sized for mid-range Winix purifier models

Sitting at $64.99, down 24% from $84.99, Filter R is the mid-range fit for Winix purifiers that use the 1712-0118-00 cartridge. The discount is the smallest here, but the filter keeps the same three-stage cleaning, which is what actually determines performance over a year.
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Filter B – 114190 — premium replacement filter for whole-room Winix air purifiers

Filter B is the largest single cartridge here at $89.99, 28% below $124.99. It serves the bigger Winix purifiers that clean whole rooms, where a wide carbon and True HEPA surface keeps airflow strong across long runs. Replace it on schedule and the unit keeps its rated coverage.
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Filter X2 – 1712-0089-03 — replacement filter for large whole-house Winix purifier systems

At $109.99, 31% off from $159.99, Filter X2 is the top item on this page, sized for whole-house Winix systems. The larger format carries the heaviest air load, so it restores the full three-stage stack on units that run all day in main living areas.
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Where a fresh Winix filter makes the difference

Filters serve bedrooms, pet homes, smoky kitchens and whole-house units. Match the filter to the room and the pollutant, and the change shows up in daily comfort and in what the unit costs to keep running.
A compact air purifier running beside a neatly made bed in a softly lit bedroom

Bedrooms and sleep spaces

A compact Filter S cartridge keeps nightly cleaning inexpensive to maintain, and a fresh one before pollen season means steadier air through the night without a large spend on a new unit.

A dog resting on a rug near a running air purifier in a warm family living room

Pet homes and dander control

Households with shedding pets put the heaviest load on the carbon and pre-filter stages, so guard layers aimed at dander and pet odor tend to earn their cost between scheduled changes.

A white air purifier running on a kitchen floor beside counters with a covered pan

Kitchens and cooking odors

Grease and cooking smells hit the carbon stage first, so a kitchen-adjacent unit benefits most from a recent filter change after heavy cooking weeks or holiday meals.

An air purifier running inside a living room with hazy orange daylight filtering through the windows

Wildfire smoke and hazy days

During smoke events the filter load spikes fast, so many households keep a spare cartridge ready and replace earlier than usual to hold onto whatever clean-air capacity the unit still offers.

A tall air purifier running in a large open living room with sofas and a dining table behind

Open living rooms and great rooms

Wide-format filters move air across larger volumes, so open plans need the bigger cartridge size rather than a compact one, and guard layers help when the room doubles as a dining and pet space.

A large air purifier running in a spacious family room with a high ceiling and open doorway

Whole-home and large spaces

Whole-house units run for long stretches each day, so their larger filters deserve earlier replacement and a bigger budget line, keeping rated coverage intact across main living areas.

What changes your pick

Six factors that decide which filter fits

Adult hand pointing to the model number sticker on the side of a white tower air purifier

Match your model number

Each cartridge fits specific Winix models, so check your unit first.

Three replacement air purifier filter cartridges of different sizes lined up on a wooden table

Guard layers add cost

Guard versions cost more than the plain base filter in each size.

An open-plan living room with a tall white air purifier beside a sofa and large windows

Room size sets the format

Larger formats move more air in open rooms than compact cartridges do.

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Discount depth varies

Cuts run from 24% to 35%, so compare the sale price, not the label.

Cross-section of an air purifier filter showing mesh pre-filter, black carbon layer and white pleated media

Stages stay consistent

Pre-filter, carbon and True HEPA (H13) stages carry across the range.

A used grey pleated filter resting on a laundry room shelf next to a blank wall calendar

Plan for repeat orders

Filters wear on a schedule, so budget for replacements each year.

Three ways to read the lineup

Pick by cartridge size, then by guard layer

Six replacement filter cartridges of graduated sizes arranged in a row on a light tabletop
By cartridge size: S, A, H, R, B, X2

The letter tells you the physical fit, not the performance tier. Start with the size your purifier accepts, then move down the list only within that size, so a cheaper wrong size never makes it past your unit's filter slot.

Two identical filter cartridges side by side, one plain and one with a pale blue added layer visible at the rim
By guard layer: standard or added defense

Base filters handle general dust, pollen and odors, while AllergenGuard, PetGuard and SmokeGuard versions add a layer aimed at one pollutant. Choose the layer that matches your household, and skip it when no single irritant dominates the room.

Two replacement filter cartridges of different sizes beside a small stack of coins on a kitchen counter
By replacement budget and frequency

Discounts across this category run from 24% to 35%, and larger formats cost more per order but serve rooms that run all day. Weigh the sale price against how many months of cleaning you expect before the next change.

Shopper notes

What people say about replacing Winix filters

I had put off replacing the filter for months because I was not sure which letter my unit took. Finding the model number on the back and matching it took about two minutes, and the new cartridge dropped straight in. The room air feels noticeably steadier, and I stopped sneezing first thing in the morning.
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Dana R.Matched her bedroom unit by model number without help
I read through the differences between the plain filter and the guard versions twice before ordering. The extra cost was small enough that I went with the layer aimed at what bothers me most, and I have been happy with that call. Knowing the stages stay the same underneath made the decision easy.
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Marcus T.Compared guard versions before paying a bit more
Prices moved a lot between the size I needed and the next one up, so I bought during the deeper discount and set a reminder for the following season. Planning ahead saved me from paying full price when the unit's indicator finally lit up. That timing habit is the part I would pass on.
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Priya S.Bought during a discount and planned the next order
With two cats on the furniture, the old filter came out visibly grey well before I expected. The replacement went in easily, and the pet smell in the den faded within a couple of days of steady running. It is a small chore that pays for itself in how the downstairs smells by evening.
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Ellen W.Noticed the difference in a home with two cats
My partner thought a newer filter would make no visible difference, so we swapped it on a Saturday and compared the running unit before and after. Air felt cleaner within a day and the sensor stopped jumping so often. Understanding the pre-filter, carbon and HEPA layers made the cost make sense to both of us.
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Jordan K.Explained the filter stages to a skeptical partner
Questions buyers actually ask

Answers on fit, cost and filter life

Look for the model number on the back or side of your purifier, then match it to the size listed on each filter. The letter marks physical fit rather than performance, so a wrong size will not seat in the slot. Matching first saves a return and a second order.
True HEPA media is what captures 99.97% of airborne particles, including fine dust and pollen, while the carbon stage handles odors. A carbon-only filter will not deliver that particle capture, so pay for the full three-stage stack if clean air, not just smell, is the goal.
PlasmaWave is a Winix feature that runs alongside the pre-filter, carbon and True HEPA (H13) stages rather than replacing them. It is part of why the units hold steady value, but the filter stages still do most of the capture work, so plan replacements on their own schedule.
Filter wear depends on airflow, pets and cooking, so homes running the unit daily in a pet-heavy or smoky room should change earlier than the annual baseline. Watch the unit’s indicator and the visible color of the pleats, and keep a spare cartridge ready during heavy smoke weeks.
No. The guard versions use the same physical cartridge, so AllergenGuard, PetGuard and SmokeGuard models drop into the same slot as the plain filter. The extra layer and the price differ by about $10, but the fit and the three-stage core stay identical.
Discounts in this category currently run from 24% to 35%, so compare the sale price rather than the label. Deeper cuts often appear on the larger formats where the absolute saving is bigger, while the smallest discounts tend to sit on the mid-range sizes.

More help choosing and living with Winix filters