How can I buy purple air?

How do I download PurpleAir?

Is PurpleAir an app?

Although PurpleAir currently does not have an app, there is a free iOS app called Local Haze which supports PurpleAir’s monitors. The app detects the nearest sensor to you and displays some basic data for the PM2. 5 concentration in real-time.

Which is more accurate PurpleAir or AirNow?

Broadly put, PurpleAir provides more localized, more current and less accurate readings than AirNow.

How many PurpleAir sensors are there?

Purple Air has two sensors, which are both graphed on the timeseries. If the sensors are reading differently, very low, or very high, then one or both may be broken. You can see current air quality data on our website.

What is PurpleAir app?

Real-time air quality monitoring for people who care about the air. PurpleAir makes sensors that a community of citizen scientists use to collect hyper-local, real-time air quality data and share it on a map that is accessible to everyone.

How do I get a PurpleAir API key?

Documentation is at https://api.purpleair.com and please email [email protected] for keys if you want to play. It includes a cool “groups” feature where you can create your own lists of sensors that you are interested in.

What is PurpleAir?

PurpleAir is a community air monitoring system of PM (10, 2.5, 1.0) air pollution sensors. … PurpleAir sensors use a fan to draw air past a laser, causing reflections from particles in the air. These reflections are used to count particles in six sizes between 0.3 and 10 micrometers in diameter.

How reliable is PurpleAir?

For the national data set of sensors collocated with regulatory-grade monitors, results show that PurpleAir sensors, when corrected, accurately report NowCast AQI categories 90% of the time as opposed to uncorrected PurpleAir data, which are accurate only 75% of the time.

Who is PurpleAir?

PurpleAir is an air quality monitoring network built on a new generation of Internet of Things sensors.

What AQI is unhealthy?

An AQI over 150 is considered unhealthy for the general population. AQI over 101 can be unhealthy for sensitive groups and some workers with asthma and other conditions may feel unhealthy when the AQI is below 150.

Which purple air conversion should I use?

If you want the most up-to-date AQI measurements, I’d recommend using Purple Air with AQandU enabled. Once the EPA conversion factor is available on PurpleAir I’d use that instead.

Which Air Quality Site is most accurate?

Airnow.gov is the gold standard when it comes to knowing the precise measurement of pm 2.5.

What does Lrapa mean on PurpleAir?

LRAPA PurpleAir Monitor Correction Factor History. In 2017 Lane Regional Air Protection Agency (LRAPA) began investigating the idea of using low-cost particulate matter (PM) sensors to supplement our PM2. 5 monitoring network and as a possible tool for use by citizens concerned about the PM levels in their neighborhood …

What do PurpleAir numbers mean?

What do the numbers on the PurpleAir map mean? The default display on the PurpleAir map is the United States Environmental Protection Agency (EPA) Air Quality Index (AQI) scale for PM2. 5. The AQI allows comparison for different pollutants with an easy-to-visualize color scheme.

What is the best air quality app?