Software · head to head
IQAir vs PurpleAir
IQAir
Software
Global air quality information and purification
- From
- $399/one-time
- Rated
- -
PurpleAir
Software
Real-time air quality monitoring for communities
- From
- $229/one-time
- Rated
- -
The short version
- Each has a real cost: IQAir extremely expensive compared to competitors with similar particle filtration performance; PurpleAir purpleAir sensors are one-time hardware purchases rather than a subscription, priced $199 to $279 USD per unit for named models (PA-I-Indoor, PA-II, PA-II-SD), per the vendor's own store (archived, 2021).
- They diverge on capability: IQAir covers Global AQI data, PurpleAir covers PM2.5 monitoring.
Where they differ
Only the attributes on which IQAir and PurpleAir actually diverge.
Identical on both: free tier (No), user rating (Not yet rated), category (Unknown).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in IQAir
- Global AQI data
- City rankings
- Health recommendations
- Forecasts
- Mobile apps
- Smart home
- Ios support
- Android support
Only in PurpleAir
- PM2.5 monitoring
- Real-time map
- Community network
- Home Assistant
- Data downloads
- Hardware support
Both cover
- Historical data
- API access
- Web support
- Api support
What people use each for
The jobs each tool is most often brought in to do.
IQAir
- Checking real-time outdoor and indoor air quality (AQI, PM2.5, etc.) via the AirVisual appnot PurpleAir
- Getting air quality forecasts for a locationnot PurpleAir
- Remotely monitoring and controlling IQAir air purifiers from a smartphonenot PurpleAir
- Integrating air quality/weather data into third-party apps via the AirVisual APInot PurpleAir
- Tracking global air pollution using monitoring station datanot PurpleAir
PurpleAir
- Professional Worknot IQAir
- Content Creationnot IQAir
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
IQAir
- Extremely expensive compared to competitors with similar particle filtration performance
- Energy inefficient motors consume 215W at comparable CFM to cheaper models
- Limited sensor specificity for users with specific allergies or respiratory concerns
- Bulky design and outdated appearance unsuitable for modern interior design
- Replacement filters are very expensive at $199.99 with high ongoing costs
PurpleAir
- PurpleAir sensors are one-time hardware purchases rather than a subscription, priced $199 to $279 USD per unit for named models (PA-I-Indoor, PA-II, PA-II-SD), per the vendor's own store (archived, 2021).
Pricing, plan by plan
IQAir
$399/one-time- Atem Desk$399/one-time
- Portable desktop air purifier
- Small room coverage
- Atem Eco$799.99/one-time
- Smart air purification
- Most affordable smart model
- Released June 2026
- Atem X$1399/one-time
- Premium smart purifier
- Large room coverage
- Advanced filtration
- HealthPro Plus$949/one-time
- Medical-grade HyperHEPA filtration
- Large room coverage
- Gas and particle filtration
PurpleAir
$229/one-time- Outdoor Sensor$229/one-time
- PM2.5 monitoring
- Cloud connectivity
- Map access
- Indoor Sensor$199/one-time
- Indoor monitoring
- WiFi enabled
- Real-time data
Which should you pick?
Choose IQAir if
- You need global aqi data.
- You work on Web, iOS, Android, Hardware.
- You also want city rankings.
Choose PurpleAir if
- You need pm2.5 monitoring.
- You work on Web, Api, Hardware.
- You also want real-time map.
Questions people ask
- Is IQAir or PurpleAir better?
- Neither clearly leads. IQAir starts at $399/one-time and PurpleAir at $229/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, IQAir or PurpleAir?
- IQAir starts at $399/one-time and PurpleAir at $229/one-time.
- Does IQAir or PurpleAir run on more platforms?
- IQAir runs on Web, iOS, Android, Hardware. PurpleAir runs on Web, Api, Hardware.
- What is IQAir best used for?
- IQAir is most often used for checking real-time outdoor and indoor air quality (aqi, pm2.5, etc.) via the airvisual app, getting air quality forecasts for a location, remotely monitoring and controlling iqair air purifiers from a smartphone, integrating air quality/weather data into third-party apps via the airvisual api. Of those, checking real-time outdoor and indoor air quality (aqi, pm2.5, etc.) via the airvisual app and getting air quality forecasts for a location are not what PurpleAir is typically brought in for.
- What can IQAir do that PurpleAir cannot?
- IQAir covers Global AQI data, City rankings, Health recommendations, Forecasts. PurpleAir covers PM2.5 monitoring, Real-time map, Community network, Home Assistant. Both handle Historical data, API access, Web support, Api support.
Answered from the vendors’ own pages
IQAir: What does IQAir do?
IQAir is a Swiss company providing two main services: air purification hardware (home and commercial air purifiers and filters) and air quality monitoring (real-time global air quality data from 80,000+ sensors worldwide, accessible via the AirVisual app and IQAir.com).
SourceIQAir: How much do IQAir air purifiers cost?
IQAir air purifiers range from $399 for portable Atem models to $949 for the HealthPro Plus. The new Atem Eco model is $799.99. Replacement filters cost $199.99 and last 1-4 years depending on usage.
SourceIQAir: What real-time air quality data does IQAir provide?
IQAir provides real-time air quality data covering 500,000+ locations in 100+ countries, integrating data from government monitoring stations and 80,000+ IQAir-validated sensors. The platform measures PM2.5, PM10, and AQI for each location.
SourceIQAir: Does IQAir have a mobile app?
Yes. IQAir's AirVisual app is available on iOS and Android, providing real-time air quality information, AQI rankings, health recommendations, and remote control of IQAir smart air purifiers.
SourceIQAir: Is IQAir affordable compared to other air purifiers?
No. IQAir air purifiers are significantly more expensive than alternatives. The HealthPro Plus at $900 offers similar particle filtering to the Winix 5500-2 at $300. Higher cost is primarily due to superior gas filtration but poor overall value for most users.
Source