Best 2021 Air Purifiers for smart features

#1 Coway Airmega 250
4.5

Smart features were praised for set-and-forget use and helpful sensors, apart from the separate app-connectivity limitation.

Pros: smoke removal, CADR rating

Cons: filter replacement cost, app connectivity

#3 Levoit 400S
4.4

Smart features were a major strength, covering app control, Smart Scenes, automation, scheduling and connected-home convenience.

Pros: ozone-free operation, build quality

Cons: VOC sensor accuracy, washable pre-filter

#4 Levoit Core 300S
4.3

Smart features were a key appeal, including app control, sensors, timers, scheduling, voice support, and Auto mode, though one review criticized app reliability.

Pros: ozone-free operation, safety certifications

Cons: VOC sensor accuracy, handle design

#5 Coway Airmega 250S
4.3

Smart features were a strength overall, combining app controls, air-quality data, voice support, Eco behavior, and scheduling.

Pros: pre-filter quality, room coverage

Cons: fan speed options, filter replacement cost

#6 Dyson Purifier Cool Formaldehyde TP09
4.0

Smart features are a strong differentiator, especially data tracking and app controls, though some advanced details are seen as nonessential.

Pros: allergen reduction, smoke removal

Cons: customer support, reliability

#7 PuroAir 240
3.0

Smart features are limited. Auto mode is useful, but buyers wanting Wi-Fi, app control, or deeper smart-home features may be disappointed.

Pros: particle removal effectiveness, dust removal

Cons: CADR rating, air changes per hour

#8 Dyson Purifier Cool Gen1 TP10
2.9

Smart-feature evidence focuses on remote dependence and missing app-style control, a common frustration when the remote is lost or unavailable.

Pros: overall satisfaction, real-time air quality monitoring

Cons: VOC sensor accuracy, customer support

#9 Levoit Mini-P
2.9

Smart features were a weak point by design: reviewers liked the simplicity but noted missing timers, sensors, auto modes, and advanced controls.

Pros: energy efficiency, power consumption

Cons: scheduling options, true HEPA filter

#10 AirDoctor 5000
2.8

Smart features are limited. The purifier focuses on raw performance and simple controls rather than connected app-based convenience.

Pros: ozone-free operation, particle removal effectiveness

Cons: filter replacement cost, app connectivity

#11 Honeywell HPA830W
2.5

Smart-feature evidence is limited: the unit has sensor-based automation but lacks app, remote, and modern connected extras.

Pros: dust removal, pollen removal

Cons: app connectivity, remote control

#12 MOOKA B-D02L
2.5

Smart features are intentionally sparse. Some buyers like the no-app simplicity, while expert coverage flags the lack of advanced controls.

Pros: ozone-free operation, breathing relief

Cons: CADR rating, remote control

#13 Dyson Purifier Cool TP07
2.2

Evidence for smart features appears in the listed reviews; scores reflect whether each source praised, criticized, or qualified that trait.

Cons: customer support, reliability

#14 Honeywell HPA5300
2.0

Customer evidence for smart features was negative or cautionary across 4 review(s), based only on cited transcript evidence.

Pros: particle removal effectiveness, pollen removal

Cons: child lock, listing accuracy

#15 GermGuardian AC4825
2.0

Smart features are limited; reviewers described the unit as basic and lacking automatic or real-time functions.

Pros: filter availability, ozone-free operation

Cons: washable pre-filter, VOC reduction

#16 AROEVE MK01
1.8

Smart features are minimal. Reviewers describe the purifier as simple and app-free, which keeps it easy but leaves buyers without connected controls or advanced automation.

Pros: customer support, allergen reduction

Cons: app connectivity, smart features

#17 Dyson Purifier Hot+Cool Formaldehyde, HP09
1.8

Smart features were useful overall but scored down by customers who could not control heating through the app.

Pros: dust removal, PM2.5 detection

Cons: mold spore reduction, durability