Winix Extra Large True HEPA Air Purifier vs Winix AT40 True HEPA Air Purifier (2026): Key Differences
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You are comparing the winix 5510 air purifier vs at40 air purifier. Both units use True HEPA filtration to capture 99.99% of particles as small as 0.01 microns. They also both include smart app connectivity and auto modes. The main difference lies in their physical design and coverage specifics. The 5510 is an extra large unit with a washable pre-filter and lower noise on sleep mode. The AT40 is more compact and includes two years of filters.
Key differences
| Aspect | Winix Extra Large True HEPA Air Purifier | Winix AT40 True HEPA Air Purifier |
|---|---|---|
| Room Coverage | Up to 1,882 sq ft | Up to 1,968 sq ft |
| Form Factor | Extra Large (15.9 x 25.2 x 11 in) | Large (10.5 x 19 x 10.5 in) |
| Filter Inclusions | Standard filter set | 2 years of filters included |
| Noise Level | 23.5 dB on slowest speed | not listed |
| Pre-Filter | Washable fine mesh pre-filter | not listed |
| Display | LED lights | Digital display with dynamic feedback |
Which one should you choose?
Choose Winix Extra Large True HEPA Air Purifier if
- You need a purifier for a very large room up to 1,882 sq ft.
- You want a washable pre-filter to extend HEPA life.
- You prioritize ultra-quiet operation at 23.5 dB.
Choose Winix AT40 True HEPA Air Purifier if
- You want coverage up to 1,968 sq ft.
- You prefer a more compact unit with a smaller footprint.
- You want two years of filters included with the purchase.
Verdict: Choose the 5510 if you need a larger physical unit with a washable pre-filter and verified quiet operation. Pick the AT40 if you want a smaller footprint, higher square footage coverage, and included filter replacements. Both models provide reliable True HEPA filtration and smart app control.
Winix 5510 vs AT40 Comparison
Room coverage
The Winix AT40 covers slightly larger spaces. It cleans rooms up to 1,968 square feet in one hour. The Winix 5510 handles up to 1,882 square feet in the same time. Both units meet the AHAM verified standard for their respective sizes. You get faster air changes in larger areas with the AT40. The 5510 still covers a substantial area for most large rooms. The difference is small but measurable if you have a very open floor plan. Choose the AT40 for maximum coverage.
Physical size
The Winix AT40 is significantly more compact. It measures 10.5 inches wide, 10.5 inches long, and 19 inches tall. It weighs only 7 pounds. The Winix 5510 is much larger. It measures 11 inches wide, 15.9 inches long, and 25.2 inches tall. It weighs 13.3 pounds. The AT40 fits easily in tighter corners or smaller spaces. The 5510 requires more floor space due to its larger frame. If you have limited room for a unit, the AT40 is the better choice.
Noise level
The Winix 5510 offers a specific quiet mode rating. It operates at nearly silent levels on the slowest speed, measuring 23.5 dB. The AT40 data does not list a specific decibel rating. Both units have auto modes that adjust fan speed based on air quality. You likely want the quietest option for a bedroom. The 5510 provides the verified low-noise spec. The AT40 may be quieter due to its smaller size, but the data does not confirm this. The 5510 wins on stated quiet performance.
Air quality display
The Winix AT40 features a digital display. It shows air quality as Good, Fair, or Poor. It also displays setting changes like fan speed and WiFi status. The Winix 5510 uses LED lights for a visual indicator. It does not have a digital screen. The AT40 gives you more detailed feedback on the unit itself. The 5510 relies on simple color coding. If you prefer seeing exact status updates on the device, the AT40 is superior.
Filter inclusion
The Winix AT40 includes two years of filters. It comes with two 360-degree All-in-One True HEPA Filter sets. The Winix 5510 data does not mention included filters. It likely requires separate purchase. This is a significant value factor for the AT40. You get immediate setup and longer maintenance coverage. The 5510 may have a lower upfront cost, but you must buy filters separately. The AT40 provides more value through included consumables.
Smart connectivity
Both units support the Winix Smart App. They allow remote control and monitoring from anywhere. The AT40 uses WiFi for this connection. The 5510 also supports app control. Both offer auto mode adjustments based on sensor data. There is no clear technical advantage in connectivity for either unit. Both provide the same level of smart home integration. You get the same features in the app for both models. This is a tie in functionality.
Which Winix model fits your space
You need the quietest sleep mode
The Winix 5510 operates at 23.5 dB on its lowest setting. This makes it nearly silent during sleep. The AT40 does not list a decibel rating. If quiet operation is your priority, the 5510 offers a verified low-noise performance for nighttime use.
You want real-time digital feedback
The AT40 features a digital display that shows air quality as Good, Fair, or Poor. It also displays fan speed and WiFi status. The 5510 uses simple LED lights without a screen. If you prefer detailed visual data on your unit, the AT40 is the better choice.
You want included replacement filters
The AT40 includes two sets of 360-degree True HEPA filters. These provide two years of filtration. The 5510 listing does not mention included filter sets. If you want immediate filter coverage without buying extras, the AT40 provides this value in the box.
You prefer a compact footprint
The AT40 is 10.5 inches wide and 10.5 inches deep. It weighs only 7 pounds. The 5510 is wider at 11 inches and deeper at 15.9 inches, weighing 13.3 pounds. If space is tight, the AT40 is more compact and lighter to move.
The products compared
Winix Extra Large True HEPA Air Purifier
Best for: large rooms needing app control
- Room Coverage
- 1,882 sq ft
- Filter Type
- True HEPA
- Noise Level
- 23.5 dB
- Air Quality Sensor
- Air quality sensor
- Smart Connectivity
- Winix Smart App
- Operating Modes
- Auto, Sleep
View on Amazon: Winix Extra Large True HEPA Air Purifier Affiliate link
The Winix 5510 covers up to 1,882 square feet in one hour. It uses a True HEPA filter to capture 99.99% of allergens and a carbon filter for odors. The unit includes a washable pre-filter and a smart air quality sensor. You can control it via the Winix Smart App. It operates quietly at 23.5 dB on the lowest setting.
Pros
- Covers rooms up to 1,882 sq ft in 1 hour
- True HEPA filter captures 99.99% of airborne particles
- Smart app control and real-time air quality sensor
- Washable fine mesh pre-filter extends HEPA life
- Ultra-quiet operation at 23.5 dB on slowest speed
Cons
- No physical remote control listed in specifications
- Only two operating modes: Auto and Sleep
- Bulky dimensions at 15.9 x 11 x 25.2 inches
Good fit if
- You need coverage for a large room up to 1,882 sq ft
- You want to monitor and control the unit via smartphone
- You prioritize low noise levels during sleep
Skip if
- You require a dedicated physical remote control
- You need multiple fan speed settings beyond Auto and Sleep
- You have limited space for a large footprint unit
Verdict: Winix 5510 Extra Large Air Purifier fits large rooms where app control and quiet operation matter most.
Winix AT40 True HEPA Air Purifier
Best for: Large rooms needing high coverage and app control
- Room Coverage
- 1,968 sq ft
- Filter Type
- True HEPA
- Air Quality Sensor
- Digital display, LED indicator
- Smart Connectivity
- Winix Smart App, WiFi
- Operating Modes
- Auto Mode
- Room Type
- Large Room, Extra Large Room
View on Amazon: Winix AT40 True HEPA Air Purifier Affiliate link
The Winix AT40 is a large air purifier designed for extra large rooms up to 1,968 square feet. It includes two years of True HEPA filters and features Wi-Fi app control. The unit displays real-time air quality with color-coded LEDs and offers auto mode. It captures particles as small as 0.01 microns. This model suits users needing high coverage and smart monitoring capabilities for their living spaces.
Pros
- Cleans rooms up to 1,968 sq ft in one hour
- Includes two years of 360° True HEPA filters
- Wi-Fi connectivity for app control and monitoring
- Digital display with color-coded air quality feedback
Cons
- Heavier build at 7 pounds compared to smaller units
- No remote control listed in specifications
- App support is not included in the base filter package
Good fit if
- You need coverage for rooms up to 1,968 square feet
- You want real-time air quality monitoring via a display
- You prefer controlling your purifier through a smartphone app
Skip if
- You require a compact unit for small bedrooms
- You need a remote control for operation
- You are looking for a budget option with minimal features
Verdict: Winix AT40 Large Room Air Purifier is ideal for large spaces where high coverage and smart app control are priorities. It delivers strong filtration for extra large rooms but lacks a remote.
Specifications side by side
| Spec | Winix Extra Large True HEPA Air Purifier | Winix AT40 True HEPA Air Purifier |
|---|---|---|
| Room Coverage | 1,882 sq ft | 1,968 sq ft |
| Filter Type | True HEPA | True HEPA |
| Noise Level | 23.5 dB | not stated |
| Air Quality Sensor | Air quality sensor | Digital display, LED indicator |
| Smart Connectivity | Winix Smart App | Winix Smart App, WiFi |
| Operating Modes | Auto, Sleep | Auto Mode |
| Room Type | Large Room | Large Room, Extra Large Room |
| Target Pollutant | Smoke, Allergies | Smoke, Pet Dander, Dust |
| Features | Auto Mode | Air Quality Monitor, Auto Mode |
| Control Method | App Control | not stated |
| Dimensions | 11 × 15.9 × 25.2 inches | 10.5 × 10.5 × 19 inches |
| Weight | 13.3 pounds | 8.35 pounds |
| Size | Extra Large | Large |
| Color | Polished Charcoal Gray | White |
| Model | 5510 | 1022-0238-00 |
Frequently asked questions
Does the Winix AT40 have a remote control?
No, the Winix AT40 does not include a remote control. You must use the app or the device controls to operate it. The Winix 5510 also lacks a remote. Both models rely on app connectivity and onboard buttons for adjustments. You can manage settings through your smartphone for both units.
Which Winix model is better for pet dander?
The Winix AT40 is better for pet dander. Its attributes list pet dander as a target pollutant. The Winix 5510 focuses on smoke and allergies. Both use True HEPA filters to capture particles. However, the AT40 explicitly addresses pet dander in its specifications, making it the more suitable choice for pet owners.
Is the Winix 5510 larger than the AT40?
Yes, the Winix 5510 is physically larger. It measures 25.2 inches in height and weighs 13.3 pounds. The AT40 is more compact at 19 inches tall and 7 pounds. The 5510 is designed for extra large rooms. The AT40 is labeled as large, though it covers significant square footage efficiently.
Do both purifiers have air quality monitors?
Only the Winix AT40 features an air quality monitor. The Winix 5510 does not list this feature in its specifications. Both units include auto modes that adjust fan speed. However, only the AT40 provides real-time air quality sensing. You will need to check the app for air status on the 5510 model.
Can I control both units via an app?
Yes, you can control both units via an app. The Winix 5510 uses app control as its primary method. The Winix AT40 also supports smart app connectivity. This allows you to manage settings remotely. You do not need to be near the device to change modes or check status for either model.
What is the color difference between the models?
The Winix 5510 comes in polished charcoal gray. The Winix AT40 is white. This is the only color difference listed in the specifications. Both models have a clean, modern design. You can choose based on which color fits your room decor better. The physical dimensions differ, but the finish is the main visual distinction.
Which model is lighter to move around?
The Winix AT40 is lighter to move. It weighs 7 pounds. The Winix 5510 weighs 13.3 pounds. The AT40 is also more compact in width and length. You can easily relocate the AT40. The 5510 is heavier and larger, making it better suited for a permanent spot in a large room.
Do both filters include carbon for odors?
Yes, both filters include carbon for odor reduction. The Winix 5510 uses HEPA, True HEPA, and Carbon Filter types. The Winix AT40 also lists HEPA, True HEPA, and Carbon Filter. Both models target smoke and airborne particles. The carbon layer helps with general odors. You get similar filtration stages in both units.