The best smart True HEPA air purifier names its True HEPA filter plainly and adds app or Wi-Fi control. We compared five connected models on listed particle capture, coverage in one hour, sensors and low noise.
See also our best smart air purifier and best True HEPA smart air purifier guides. Every pick comes from the makers’ specifications on each Amazon listing, not our own testing, and our Editorial Policy explains how we work. Replace filters on the schedule each maker lists and keep the air intake clear.
Our Top 3 Picks for the Best Smart True HEPA Air Purifier
Winix T810 smart True HEPA air purifier with Alexa and Google Assistant
- Winix True HEPA listed to capture 99.99% of airborne particles as small as 0.01 microns
- Works with both Amazon Alexa and Google Assistant
- Winix Smart App controls and monitors the unit over Wi-Fi from anywhere
LG PuriCare 360 smart air purifier with NanoFiber True HEPA filter
- PM1.0 sensor detects particles as small as 1 micron
- NanoFiber True HEPA filter listed to trap 99.97% of 0.3 micron particles
- LED indicator on top shifts from red to green as air quality improves
Dhyala KJ02 smart air purifier with H13 True HEPA and 5-stage filtration
- Lists 3,620 sq ft in one hour with a CADR of 271 CFM
- 5-stage system built around an H13 True HEPA filter
- App, touch screen, Alexa and Google Assistant control
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Smart True HEPA Air Purifiers Compared
| # | Product | Key Features | |
|---|---|---|---|
| 1 |  Winix T810 smart True HEPA air purifier with Alexa and Google Assistant |
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| 2 |  LG PuriCare 360 smart air purifier with NanoFiber True HEPA filter |
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| 3 |  Dhyala KJ02 smart air purifier with H13 True HEPA and 5-stage filtration |
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| 4 |  Winix 9800 smart 4-stage True HEPA air purifier with PlasmaWave |
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| 5 |  AZEUS GL-FS32 smart Wi-Fi air purifier with True HEPA filter |
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1. Winix T810 smart True HEPA air purifier with Alexa and Google Assistant
Best Overall
- Winix True HEPA listed to capture 99.99% of airborne particles as small as 0.01 microns
- Works with both Amazon Alexa and Google Assistant
- Winix Smart App controls and monitors the unit over Wi-Fi from anywhere
- Washable fine mesh pre-filter catches the largest airborne particles
- Lists 1,968 sq ft in 1 hour, below Dhyala KJ02 at 3,620, Winix 9800 at 2,420 and LG PuriCare 360 at 2,059
- Low Noise: 23.8 dB
- Filter Stages: 3
- Size: 11.3 x 11.3 x 20.4 in
Winix lists the T810 for 1,968 sq ft in 1 hour and 984 sq ft in 30 minutes. A washable fine mesh pre-filter and an activated carbon filter work alongside the True HEPA filter.
The carbon filter is listed to reduce VOCs and household odors from cooking, pets and smoke. The listing also names Auto Mode, a 23.8 dB noise level and a weight of 10.4 pounds.
Good match for the Winix T810
It suits buyers who want a True HEPA filter with both major voice assistants in a 10.4 pound unit.
When to choose another pick over the Winix T810
Skip it if you need the most hourly coverage, since Dhyala KJ02 lists 3,620 sq ft in one hour.
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2. LG PuriCare 360 smart air purifier with NanoFiber True HEPA filter
Best PM1.0 Sensor
- PM1.0 sensor detects particles as small as 1 micron
- NanoFiber True HEPA filter listed to trap 99.97% of 0.3 micron particles
- LED indicator on top shifts from red to green as air quality improves
- Wi-Fi connection with app control
- Lists 2,059 sq ft in 1 hour, below Dhyala KJ02 at 3,620 and Winix 9800 at 2,420
- Low Noise: 23 dB
- Filter Stages: 3
- Weight: 14.9 lb
LG lists 2,059 sq ft at one air change per hour, or 429 sq ft at 4.8 air changes per hour. A removable pre-filter and an activated carbon filter join the NanoFiber True HEPA filter.
The listing names 360 degrees of filtration and a noise level of 23 dB. The unit stands 20.1 inches tall on a 12.4 by 12.4 inch base.
Good match for the LG PuriCare 360
It suits buyers who want a fine particle sensor and a color readout on top of the unit.
When to choose another pick over the LG PuriCare 360
Skip it if you want the smallest listed particle size, since Winix T810 lists 99.99% capture down to 0.01 microns.
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3. Dhyala KJ02 smart air purifier with H13 True HEPA and 5-stage filtration
Most Coverage per Hour
- Lists 3,620 sq ft in one hour with a CADR of 271 CFM
- 5-stage system built around an H13 True HEPA filter
- App, touch screen, Alexa and Google Assistant control
- Sleep mode drops the fan to its minimum at 22 dB
- Lists 0.3 micron particle retention, while Winix T810 lists capture down to 0.01 microns
- Low Noise: 22 dB
- Filter Stages: 5
- CADR: 271 CFM
Dhyala lists a CADR of 271 CFM and up to 3,620 sq ft cleaned in one hour. The pre-filter uses electrostatic adsorption, and the activated carbon filter targets smoke, pet and cooking odors.
The app handles power, custom and sleep modes, the timer, fan speed and filter change reminders. A pet lying platform, a bite-proof power cord and a pet and child lock complete the design.
Good match for the Dhyala KJ02
It suits open floor plans and pet homes that want the most hourly coverage in this group.
When to choose another pick over the Dhyala KJ02
Skip it if you need the smallest unit, since AZEUS GL-FS32 measures 7 by 7 by 11 inches.
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4. Winix 9800 smart 4-stage True HEPA air purifier with PlasmaWave
Best Light Sensing Sleep Mode
- Winix True HEPA filter paired with PlasmaWave air cleaning technology
- Sleep Mode switches on when the room is darkened and returns to Auto Mode with light
- Dual smart sensors adjust fan speed in real time in Auto Mode
- Lists 2,420 sq ft in 1 hour
- Lists 26.2 dB, above Dhyala KJ02 at 22, LG PuriCare 360 at 23, Winix T810 at 23.8 and AZEUS GL-FS32 at 24
- Low Noise: 26.2 dB
- Filter Stages: 4
- Weight: 19 lb
Winix lists the 9800 for 2,420 sq ft in 1 hour and 605 sq ft in 15 minutes. The listing names a washable fine mesh pre-filter, an activated carbon filter, a True HEPA filter and PlasmaWave technology.
An LED air quality indicator shows real time room conditions. The Winix Smart App adds remote control over Wi-Fi, and the listing names Amazon Alexa.
Good match for the Winix 9800
It suits buyers who want PlasmaWave and a sleep mode that follows room light.
When to choose another pick over the Winix 9800
Skip it if quiet matters most, since Dhyala KJ02 lists 22 dB in sleep mode.
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5. AZEUS GL-FS32 smart Wi-Fi air purifier with True HEPA filter
Most Compact
- Measures 7 by 7 by 11 inches, the smallest body in this group
- Pre-filter, activated carbon filter and True HEPA filter in one 3-stage system
- Built-in air quality sensor adjusts fan speed in Auto Mode
- Brushless DC motor runs as low as 24 dB
- Lists 3 filter stages, fewer than Dhyala KJ02 at 5 and Winix 9800 at 4
- Low Noise: 24 dB
- Filter Stages: 3
- Size: 7 x 7 x 11 in
AZEUS lists the GL-FS32 for enclosed rooms up to 1,076 sq ft. Its three filters are listed to capture dust, pet hair, odors and fine airborne particles.
The brushless DC motor and aerodynamic airflow structure are listed at 24 to 50 dB. Smart control runs over Wi-Fi, as named in the listing title.
Good match for the AZEUS GL-FS32
It suits bedrooms and offices where a small footprint matters most.
When to choose another pick over the AZEUS GL-FS32
Skip it if you want more filter stages, since Dhyala KJ02 lists a 5-stage system.
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How to Choose the Best Smart True HEPA Air Purifier
- Read the True HEPA claim. Winix T810 lists 99.99% to 0.01 microns, LG PuriCare 360 lists 99.97% at 0.3 microns and Dhyala KJ02 names H13 True HEPA.
- Compare hourly coverage on one basis. Dhyala KJ02 lists 3,620 sq ft in one hour, Winix 9800 2,420, LG PuriCare 360 2,059 and Winix T810 1,968.
- Count the filter stages. Dhyala KJ02 lists 5 and Winix 9800 lists 4, while Winix T810, LG PuriCare 360 and AZEUS GL-FS32 each list 3.
- Check voice support. Winix T810 and Dhyala KJ02 list Alexa and Google Assistant, while Winix 9800 lists Alexa.
- Compare low noise for bedrooms. Dhyala KJ02 lists 22 dB, LG PuriCare 360 23, Winix T810 23.8, AZEUS GL-FS32 24 and Winix 9800 26.2.
Frequently Asked Questions
Which pick lists the smallest particle size for its True HEPA filter?
Winix T810 lists 99.99% capture of airborne particles as small as 0.01 microns. LG PuriCare 360 lists 99.97% of 0.3 micron particles.
Which True HEPA pick covers the most space in one hour?
Dhyala KJ02 lists 3,620 sq ft in one hour with a CADR of 271 CFM. Winix 9800 follows at 2,420 sq ft in 1 hour.
Do these True HEPA purifiers also use a carbon filter?
Yes. Winix T810, LG PuriCare 360, Dhyala KJ02, Winix 9800 and AZEUS GL-FS32 all list an activated carbon filter beside True HEPA.
Which pick takes up the least space?
AZEUS GL-FS32 measures 7 by 7 by 11 inches. Dhyala KJ02 is next at 9.84 by 9.84 by 20.15 inches.
The Bottom Line
Our best smart True HEPA air purifier pick is the Winix T810 for its 0.01 micron True HEPA claim and voice control. Choose LG PuriCare 360 for a PM1.0 sensor and Dhyala KJ02 for 3,620 sq ft in one hour.
Best Overall: Winix T810 smart True HEPA air purifier with Alexa and Google Assistant Check Latest Price
Best PM1.0 Sensor: LG PuriCare 360 smart air purifier with NanoFiber True HEPA filter Check Latest Price
Most Coverage per Hour: Dhyala KJ02 smart air purifier with H13 True HEPA and 5-stage filtration Check Latest Price
Match each replacement True HEPA filter to the model number on the listing before you order.
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