Quick answer: The Winix 5510 is one of the best mid-range air purifiers for odors because it uses a granular activated carbon filter, not just a thin carbon-dusted sheet, alongside True HEPA and a washable pre-filter. It’s a strong pick for pet, cooking and light smoke odors in living rooms and bedrooms up to about 390 sq ft for full-strength cleaning. Skip it if you need a whisper-quiet unit on high or want to cover a huge open-plan space.
This Winix 5510 review focuses on what matters for smells: carbon, real room size and upkeep. The 5510 is the newer generation of the long-popular Winix 5500-2, now with app support.
Our review is based on manufacturer specs, expert guidance and patterns in thousands of verified owner reviews. The goal is simple: tell you whether it will actually make your home smell better.
Who the Winix 5510 is for (and who should skip it)
- Great for: pet owners fighting litter box, dog bed or “wet dog” smells, kitchens that linger with cooking odors, and people who want odor control plus allergen filtration in one mid-range unit.
- Also good for: bedrooms and living rooms where you want an auto mode that ramps up when you cook or the dog comes in wet.
- Skip it if: you need to clean a very large open floor plan (look at a bigger unit), you want the quietest possible bedroom purifier, or you’re dealing with heavy, daily indoor smoking, where more carbon and more airflow matter.
Winix 5510 key specs
| Spec | Winix 5510 |
|---|---|
| Filtration | Washable pre-filter, granular activated carbon (“high deodorization”) filter, True HEPA |
| Extra technology | PlasmaWave (can be switched off) |
| AHAM Verifide room size | 392 sq ft |
| Maximum coverage claim | Up to 1,882 sq ft per hour (about one air change per hour) |
| Smart features | App support, auto mode with air quality sensor |
| Owner feedback | Strong owner ratings across tens of thousands of reviews |
| Price tier | Mid-range |
What does “392 sq ft” vs “1,882 sq ft” mean?
These two numbers confuse a lot of shoppers. The AHAM Verifide room size (392 sq ft) is the room the 5510 can clean thoroughly, at roughly five air changes per hour. That’s the number to use for allergies, smoke and strong odors.
The 1,882 sq ft figure assumes the air in the room is filtered only once per hour. That’s fine for light freshening, not for a room where the litter box lives. Plan on the smaller number and you’ll be happy with the results.
What we like about the Winix 5510
A real carbon filter for odors
HEPA filters catch particles like dander, pollen and dust. They do almost nothing for smells, which are gases. Odor removal depends on activated carbon, and specifically on how much carbon there is.
Many purifiers use a thin sheet impregnated with carbon dust. That helps a little and saturates fast. The 5510 uses a granular activated carbon filter, which gives far more surface area to trap odor molecules. That’s the main reason we rank it as the odor pick in our best air purifier for pet odor guide.
Washable pre-filter for pet hair
The pre-filter catches hair and big dust before it reaches the carbon and HEPA layers. Because you can rinse it, you protect the more expensive filters and keep airflow strong. In a shedding household, check it every two weeks.
Auto mode that responds to cooking and pets
The air quality sensor lets the 5510 ramp up when particles spike, such as frying, vacuuming or a dog shaking off, then settle back down. Owners frequently mention that the auto mode is the setting they leave on, and the app adds remote control and filter status.
A proven design with a long track record
The 5510 builds on the 5500-2, one of the best-known odor purifiers of the last several years. That track record, plus tens of thousands of owner reviews, means fewer surprises than with a brand-new design.
What to know before you buy
PlasmaWave: leave it on or turn it off?
PlasmaWave is Winix’s ionizing technology. Winix states it is designed not to produce harmful ozone levels. Still, the EPA advises caution with air cleaners that intentionally generate ions or byproducts, and filtration is what does the heavy lifting on odors and particles.
If you have asthma, lung sensitivity, birds or simply prefer caution, switch PlasmaWave off. You keep the full benefit of the HEPA and carbon filters. And to be clear: never use a true ozone generator in an occupied room, which the EPA warns can irritate the lungs.
Carbon filters don’t last forever
Activated carbon fills up. Once it’s saturated, odor control drops off even if the HEPA filter still looks fine. Carbon usually needs replacing more often than HEPA, so follow Winix’s replacement schedule and the filter indicator, and budget for ongoing filters.
It cleans the air, not the source
No purifier removes urine soaked into carpet or smoke residue on walls. If a room keeps smelling, the source is still there. Clean it first: our guides on getting rid of cat pee smell and dog urine smell in carpet cover the enzyme method that actually breaks down the odor.
Noise on the top speed
Like most purifiers in this class, the top fan speed is noticeable. Owners often mention it’s quiet on sleep and low settings but loud on turbo. Run it on high while you’re out, then let auto mode take over.
Air purifiers help reduce airborne allergens and odors, but they don’t treat asthma or allergies. If you or anyone in your home has breathing symptoms, talk to a doctor. Turn off ionizing features if anyone is sensitive, and never use an ozone generator in a room where people or pets are present.
How the Winix 5510 compares
| Model | Best for | Odor filter | Coverage (1 air change/hr) | Pet features | |
|---|---|---|---|---|---|
| Winix 5510 | Odors in mid-size rooms | Granular activated carbon | Up to 1,882 sq ft | Washable pre-filter | Check price |
| Coway Airmega AP-1512HH | All-rounder, allergies | Deodorization carbon filter | Up to 1,748 sq ft | Washable pre-filter | Check price |
| Levoit Vital 200S-P | Pet hair and dander | Carbon layer in main filter | Up to 1,875 sq ft | Washable pre-filter, pet mode | Check price |
Winix 5510 vs Coway Airmega AP-1512HH
The Coway “Mighty” is a long-running favorite of reviewers, with a four-stage system, an auto mode and an air quality light. Its coverage is similar. For allergies, both are excellent.
For odors, the Winix gets the nod because of its granular carbon filter. The Coway is compact and a bit more understated in a living room. Its “Vital Ion” can also be turned off. See our Coway Airmega AP-1512HH review for the full breakdown.
Winix 5510 vs Levoit Vital 200S-P
The Vital 200S-P is built around pets: a washable pre-filter that’s easy to reach, a pet mode and a very large owner base. It’s the better choice if hair and dander are your main complaint.
If the problem is smell rather than fluff, the Winix’s heavier carbon filter is the more targeted tool. Our Levoit Vital 200S review goes deeper on that model.
Setup and use tips for better odor control
- Remove the filter wrapping. The filters ship sealed in plastic. It sounds obvious, but running it wrapped is a common reason owners think a purifier “does nothing”.
- Place it near the odor source, with space around it. Keep a foot or more clear on the intake sides. Near the litter box area or the dog’s bed works better than a corner across the room.
- Run it continuously. Purifiers work on the air that passes through them. Leaving auto mode on 24/7 beats blasting it for an hour after the smell builds up.
- Close the room when you can. Coverage figures assume a room, not your whole house. Doors open to a big open floor plan dilute the effect.
- Rinse the pre-filter every 2–4 weeks. Let it dry completely before reinstalling. More often with multiple pets.
- Replace carbon on schedule. When odors creep back even after you’ve cleaned the source, the carbon is likely saturated.
For smoke specifically, pair the purifier with source cleaning and a better HVAC filter. Our best air purifier for smoke smell guide covers larger units, and our guide to bad smells in the house helps you track down the source.
Winix 5510 review verdict: is it worth it?
Yes, if odor is your main problem and your room is in the mid-size range. The Winix 5510 pairs True HEPA with a genuine granular carbon filter, which is rarer than it should be at this tier. The app and auto mode make it easy to live with, and PlasmaWave is optional.
Its limits are the usual ones: carbon has to be replaced, it’s loud on the top speed, and it can’t fix an odor source you haven’t cleaned. Size it to the 392 sq ft AHAM number, not the headline figure.
Best for odors
Winix 5510 Air Purifier with True HEPA and Activated Carbon
Best for: pet, cooking and light smoke odors in living rooms and bedrooms up to about 390 sq ft.
Why we picked it
- Granular activated carbon filter for real odor control
- True HEPA plus washable pre-filter
- App support and auto mode
Keep in mind
- Carbon filter needs regular replacement
- Loud on the top fan speed
Frequently asked questions
What’s the difference between the Winix 5510 and the 5500-2?
The 5510 is the newer generation of the 5500-2. It keeps the same core idea, a washable pre-filter, granular activated carbon and True HEPA with optional PlasmaWave, and adds app support. If you already own a 5500-2 that works well, there’s little reason to replace it; for a new purchase, the 5510 is the current model.
Does the Winix 5510 produce ozone?
Winix says PlasmaWave is designed not to produce harmful ozone levels. If you want zero ionizer output, simply switch PlasmaWave off; the HEPA and carbon filters work the same either way. That’s a sensible choice for anyone with asthma or lung sensitivity, or homes with pet birds, which are very sensitive to airborne irritants.
Is the Winix 5510 good for cat litter smell?
Yes, it’s one of the better mid-range picks because of its granular carbon. Place it in the same room as the litter box, run auto mode continuously, and scoop daily. The purifier handles airborne odor between scoops; it can’t fix urine that has soaked into flooring or furniture, which needs an enzyme cleaner.
How big a room can the Winix 5510 handle?
For thorough cleaning, about 392 sq ft, which is its AHAM Verifide room size. The 1,882 sq ft figure is based on filtering the air once per hour, which is only enough for light freshening. For a larger room or open floor plan with strong odors, consider two units or a larger purifier.
Can the Winix 5510 remove cigarette smoke smell?
It helps reduce smoke particles and odor from occasional smoke, and its carbon filter gives it an edge over HEPA-only units. For heavy, daily indoor smoking, carbon saturates quickly, and smell also lingers in walls, fabrics and carpet. You’ll need source cleaning plus a larger unit for the best results.
Want to see how the Winix stacks up against every other odor pick? Read our full best air purifier for pet odor guide.
