Winix filters and replacements

Winix Plasmawave Filter

Compare Winix replacement filters for air purifiers, from single HEPA media and carbon prefilters to bundled sets. Match the right stage to your model, room size and the odors or allergens you want to control.
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Winix C535, Plasmawave 5300, 6300 and Aeramax 300/290 Replacement HEPA Filters for Allergen Season
This set is the HEPA stage on its own, built for Winix C535, Plasmawave 5300, 6300 and Aeramax 300/290 units. It captures the fine particles shoppers care about most, including pollen, dust and pet dander, so it is the right pick when your carbon stage still has life left and only particle capture needs renewing. Swapping it restores airflow and keeps auto mode from overworking the motor.
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Winix C535, Plasmawave 5300, 6300 and Aeramax 300/290 Replacement HEPA + Carbon Filter Bundle for Pet Homes
Two stages in one purchase, which is the simplest way to return a compatible Winix unit to full filtration. The HEPA layer handles airborne particles while the carbon layer works on odors, so the bundle suits pet homes, kitchens and bedrooms where both concerns show up at once. Buying the pair together also saves the second trip back to reorder the missing stage.
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Winix C535, Plasmawave 5300, 6300 and Aeramax 300/290 Replacement Carbon Prefilters for Odor Control
The carbon prefilter is the first line of defense, catching hair, lint and larger dust before it reaches the finer media. Designed for the C535, Plasmawave 5300, 6300 and Aeramax 300/290 range, it also reduces household odors as air passes through. Keeping this layer fresh is the least expensive way to extend the life of the HEPA filter behind it.
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Filter A – 115115 Replacement Filter for Winix Air Purifiers, Allergens and Dust Control
Filter A is a model-specific option for Winix purifiers that combines allergen and dust capture with odor control in one frame. It suits shoppers who want a straightforward like-for-like swap rather than a multi-stage upgrade, and it performs best in bedrooms and dens where pollen and everyday dust are the main complaint. Fit is the deciding factor, so confirm the part code first.
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Filter D3 – 1712-0101-02 Replacement Filter for Winix Purifiers, Fine Particles and Odors
Filter D3 uses several layers to trap fine particles and take odor out of the air at the same time. That layered build makes it a sensible choice for busier households where cooking smells and fine dust arrive together, and where a single-material filter would leave one problem untreated. Replacing it on a steady schedule keeps output strong without waiting for performance to drop noticeably.
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Start with these core filter picks

These five picks cover the core needs: particle capture, combined HEPA-and-carbon renewal, odor-focused carbon, and model-specific filters. Compare by stage type and fit before price.
Filter S replacement filter combining True HEPA and activated carbon for Winix air purifiers.

Filter S – 1712-0096-00 True HEPA and Activated Carbon Filter for Winix Purifiers

Filter S combines True HEPA filtration with activated carbon in one replacement frame, which makes it the straightforward pick for Winix owners who want both allergen capture and odor reduction without managing two separate stages. True HEPA media is rated to capture 99.97% of particles at 0.3 microns, covering pollen, dust and pet dander, while the carbon layer works on cooking smells and pet odors as air passes through. It is a sensible single purchase for bedrooms and living rooms where both concerns appear together.
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More ways to narrow it down

Further filter picks organized by the problem you need to solve

Filter H – 116130 High-Efficiency Replacement Filter for Winix Purifiers, Particles and Odors

Filter H is described as a high-efficiency option, aimed at shoppers who want strong particle capture and a measurable reduction in unpleasant odors from one frame. It works well in living rooms and shared spaces where traffic brings in dust and smells at the same time. Because efficiency and odor control sit in the same filter, it is a practical middle choice when you do not want to manage two separate stages.
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Filter O – 1712-0110-00 HEPA and Activated Carbon Replacement Filter for Winix Units

Filter O pairs HEPA filtration with activated carbon, so it handles both airborne particles and the smells that pass through the media. Shoppers who cook often or live near busy streets tend to notice the carbon side first, while allergy sufferers benefit from the HEPA layer underneath. Choose it when odor and particle problems arrive together rather than on their own.
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Filter U – 1712-0094-00 Replacement Filter for Pet Dander and Odor Reduction in Winix

Filter U focuses squarely on pet dander and the odors that come with it, which makes it the targeted pick for households with dogs or cats. It improves overall air quality rather than masking smell, so expect a steadier difference over weeks instead of an instant fix. Pet owners usually see the best result pairing it with regular prefilter cleaning.
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Filter I – 116131 Advanced Replacement Filter for Airborne Allergens in Winix Units

Filter I is built with a robust structure for targeting airborne allergens and persistent bad smells, which suits shoppers who run their purifier hard through peak pollen months. The sturdier construction matters in rooms where the unit cycles frequently on auto mode. Consider it when seasonal symptoms are the reason you are replacing the filter rather than routine maintenance.
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Filter X2 – 1712-0089-03 Premium HEPA and Carbon Filter for Full Winix Purification

Filter X2 is positioned as the premium choice, combining advanced HEPA and carbon layers for complete air purification in compatible Winix devices. It is the option to consider when you want maximum filtration in one purchase and plan to run the unit continuously in a large or busy room. The trade-off is a higher upfront cost against fewer separate purchases.
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Filter Z – 1712-0121-00 Replacement Filter for Winix Purifiers, 25% Off Deal Today

Filter Z is offered at a discount, which makes it the value pick for shoppers replacing filters on a schedule across more than one unit. The reduced price does not change the fit, so check your model code as usual before ordering. Buying during a sale is a sensible way to keep a spare on hand for the next replacement window.
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Where the right filter makes the biggest difference

From bedrooms and pet homes to kitchens and high-traffic shared rooms, this category serves different air problems. Match the room, the pollutant and how hard the unit runs before choosing a filter stage.
A tower air purifier running beside a made bed in a calm bedroom at dawn.

Bedroom allergen control while you sleep

Bedroom air is still for hours at a time, so pollen and fine dust settle close to where people sleep. A fresh HEPA stage keeps that load down, and running auto mode lets the sensor respond without you adjusting anything at night.

A cat resting on a sofa near a white air purifier in a bright living room.

Pet homes managing dander and odor

Pets add dander and odor that build up faster than in pet-free homes. A filter with carbon helps on the smell while the HEPA layer captures the dander, and regular prefilter cleaning keeps airflow strong between replacements.

An air purifier running in a large open living room with sofas and daylight behind.

Living rooms and shared family spaces

Shared living rooms collect dust from doors, shoes and furniture, and smells linger longer than in smaller rooms. A higher-capacity filter suits the volume, and the sensor-driven auto mode handles the spikes when people arrive.

An air purifier on a kitchen counter near a stove with daylight from a window.

Kitchen and cooking smell capture

Cooking produces smoke, grease particles and strong odors that travel through the home. A carbon-focused filter or prefilter is the part that helps most here, catching smell molecules while the HEPA layer handles airborne grease and dust.

An air purifier placed near a home entryway with coats, shoes and daylight.

High-traffic hallways and entry areas

Entrances, hallways and busy rooms see the most air movement, so dust and outdoor particles enter constantly. A complete HEPA and carbon set covers both problems, and checking the prefilter weekly is the simplest maintenance habit in these spaces.

An air purifier running by a window with trees and spring pollen visible outside.

Pollen season and high-dust periods

Pollen and seasonal dust peak at specific times of year, which is when filters work hardest and wear fastest. Planning a replacement before the season starts keeps performance steady, and an advanced filter suits rooms where symptoms are most noticeable.

Choose with confidence

What separates one Winix filter choice from another

Side-by-side comparison of a white pleated HEPA filter and a black carbon filter on a light table.

Know the filter stage

HEPA traps particles while carbon targets odors, so pick by need.

A replacement filter being lined up with the open filter compartment of a home air purifier.

Match the part number

Model codes decide fit; a wrong part number will not seat in the unit.

Close-up of the dense pleated media of a True HEPA filter showing uniform fold structure.

Check HEPA grade

True HEPA H13 media captures 99.97% of fine particles at 0.3 microns.

A HEPA filter and a carbon prefilter stacked together beside an air purifier on a hallway floor.

Bundle or buy single

Bundles pair carbon with HEPA, often cheaper than buying each alone.

A used carbon prefilter with visible lint and pet hair being lifted from an air purifier frame.

Plan for prefilter care

Carbon prefilters catch hair and lint before the HEPA media works.

A tower air purifier running in a large open living room with sofa and windows behind it.

Mind room coverage

Larger rooms need bigger filter capacity to keep auto mode quiet.

Three directions in this category

Filter subtypes you can tell apart at a glance

White pleated HEPA-only replacement filters stacked on a light table.
Particle-focused HEPA-only replacements

HEPA-only filters concentrate on particles, capturing pollen, dust and pet dander without adding an odor layer. They suit owners whose carbon stage is still effective and who want to renew only what has been depleted, keeping the cost per change lower than a full bundle.

Thin black carbon prefilter sheets laid out beside an open air purifier.
Odor-focused carbon prefilters and sheets

Carbon prefilters and carbon-focused filters target gas and odor molecules rather than dust. They are the right direction for kitchens, litter areas and smoke-prone rooms, and they work best as a front layer ahead of HEPA media instead of as a standalone answer to allergens.

A HEPA filter and carbon filter set packaged together next to a tower air purifier.
Bundled HEPA and carbon sets for full renewal

Bundled HEPA and carbon sets restore both filtration stages at once, which suits most households because particles and odors rarely appear separately. Choose a bundle when the filter indicator is due and you last replaced only one stage, or when the unit has been running loud with restricted airflow.

From fellow shoppers

What people notice after replacing their Winix filters

I replaced the filter in the bedroom unit and the room genuinely smelled fresher by the second evening. I had been blaming the carpet. It was satisfying to see how much dust had collected on the old prefilter when I pulled it out, and the whole swap took under five minutes without any tools.
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Marisol K.Noticed the difference in a bedroom within days
I was nervous about ordering the wrong part because my model number is old and hard to read. Comparing the frame shape to the photos on the listing made it obvious which one I needed. It slid straight into the slot and the filter light cleared, which took a real worry off my list.
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Denise R.Easier than expected to find the right fit
Two dogs and a cat means the living room filter was overdue. After fitting a fresh one the air feels noticeably lighter and the familiar pet smell has settled down. I still vacuum the prefilter every couple of weeks, and that routine seems to be what keeps the unit quiet.
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Alan T.Pet dander and living room smells improved
Buying the pair together worked out cheaper than ordering the stages separately, and I no longer have to remember which part I still need. The pleats look dense and well made compared with the worn filter they replaced. Running the unit on auto mode, it cycles far less often now.
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Priya S.Good value when replacing on a schedule
Pollen season used to make my home office uncomfortable by mid-afternoon. Fitting a new filter and letting the sensor run auto mode has made the room somewhere I can sit for hours again. The only thing I would say is to check the prefilter monthly, because that is where the visible pollen shows up first.
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Ken B.Seasonal pollen relief in a home office
Questions buyers actually ask

Practical answers before you order a Winix filter

Each filter is listed for the Winix models it fits, including C535, Plasmawave 5300, 6300 and Aeramax 300/290. Match the part code on your old filter to the listing, because frames that look similar can differ in depth and clip position. When in doubt, photograph your open filter bay and compare it to the listing images.
True HEPA media is rated to capture 99.97% of particles at 0.3 microns, which covers pollen, dust and pet dander. Activated carbon works differently: it adsorbs gases and odor molecules rather than trapping particles. Homes concerned mainly with allergens can run HEPA alone, while cooking or pet smells usually justify adding carbon.
Winix PlasmaWave is a low-voltage ionization step designed to reduce air pollutants while producing much lower ozone levels than conventional ion generators. It works alongside the filter stages rather than replacing them, so a fresh HEPA and carbon filter still does the heavy lifting while PlasmaWave helps with finer airborne contaminants.
There is no single interval, because homes differ in dust, pets and cooking. Treat the filter indicator as a guide, and check the prefilter monthly: a clogged prefilter makes the main media work harder and shortens its life. Rinsing or replacing the carbon prefilter regularly is the cheapest way to keep performance steady and running costs low.
Bundles pair the HEPA media with carbon layers, which suits owners who want to restore full filtration in one purchase and often cost less than buying the stages separately. Single HEPA or carbon filters make sense when you already have stock of the other stage, or when odor control is your only remaining concern.
The prefilter catches hair, lint and large dust before it reaches the finer media, which keeps the HEPA stage breathing freely and extends its usable life. Skipping prefilter care is one of the fastest ways to see airflow drop and the unit run louder, so check it regularly and clear or replace it before the main filter looks worn.

Continue with more advice on keeping your purifier running well