Plume Labs Flow 2 - The Personal Air Quality Sensor Reduce Your Exposure to Indoor and Outdoor Pollution (PM1 - PM2,5 - PM10, VOC, N02)

Wildfires in California.Smoke all over.Flow 2 reading better after factory reset, and dissociate and reconnect. But it still seems to read too low. At least compared to local air district sensors and Purple Air. Flow reads a constant 2 ug/m3 when air quality is good or moderate, a couple readings at the local air sensor were about 15 and 30. Yet the flow seldom budge from 2. Higher, very poor air quality of 130 or 140 ug/m3 is also shown way too low on flow 2, at about 50. This is for PM2.5.South Coast Air District has reviewed about 50 "low cost" (under $2000 AQ sensors. In August 2020, they reported on three Flow2's they had in the field and compared them to the Air District's very expensive sensors. In likely what is the worst, if not the worst field report, the Flow2 had "no to very weak correlations" with the Air District devices, both for PM and for NO2.Also, the NO2 sensor does not work if the temperature is below about 65 degrees F. And again the South Coast Air District finds the NO2 has no to very weak correlation with it's NO2 sensors.The Flow 2 data does not even match Plume Labs Air Quality app, which forecasts AQ city by city, and even by street. (Plume has a second app for the Flow.)Support for US is less than perfect, since they work on Paris time, which is 9 hours later than PDT.Online chat does not work sometimes, gets error messages. EDIT2, online chat works best very early in the morning PDT, and some midday. They recommend not sending emails, but trying to use their chat.Flow2 is really portable, and I can take it inside and out, and check my air purifiers are cleaning the air. I just don't have any kind of idea of how much, since the numbers Flow 2 produces don't seem accurate, either in my tests, or in the South Coast Air District tests. The Flow 2 does have a lot of different sensors, but perhaps Plume Labs, the manufacturer, should stick to trying to get fewer sensors right. EDIT: I worked with Plume online for three weeks, but could never get answers from their engineers as to why my Plume was not consistent with other sensors, nor why it was not at all consistent with South Coast Air District in two months of tests.One more thing I should mention, it has the ability to download data. However with data every minute, there are well over 1,000 (60 x 24) readings every day. So the amount of data very quickly becomes unwieldy, Plume Labs does not seem to have any settings to get just a day of data, or a week. You just get all the data your Flow 2 has ever created.Note: There is a similar product called AtmoTube Pro, sold here on Amazon, (for $20 less), that did much better in the South Coast Air District tests. I just don't have any direct experience with AtmoTube Pro. I decided to go with the IQAir Airvisual Pro, it's more of an indoor device, but shows both indoor and outdoor. The Air Visual Pro gets outdoor values from other devices.

Firstly you cannot turn off this device. It will autoshuttoff when the battery is completely drained and that shortens battery life. After 7 months my battery lasts 10 hours. Within 2 yrs I expect the battery to fail and the device to be useless. The reason you can't turn it off MUST be due to a data collection purpose of the company. It is not your device. The device is a virus and you are the carrier. Secondly the accuracy is absurdly bad. Any change in environment from outside to in or vice versa causes a huge spike in one of the pollution metrics then goes way down after a few minutes. The variation in the spikes is so absurd it cannot be chalked up to a calibration error. It does this all the time. The FAQ regarding accuracy on the company website does not address this activity. The company advertisements try to project a nonprofit - social good purpose - that's almost certainly BS.

I use this device to protect myself from episodes of bed air in my community. Generally speaking the air quality in my neighborhood is acceptable but circumstances sometimes result in poor air quality due to the unregulated air pollution from a local paper mill. If I am caught outside when this bad air comes in, I often have to be taken to the hospital. The Plume device alerts me to changing conditions in time to seek shelter. Literally, this device is a life saver!

The Plume Labs Flow2 allowed me to detect an air quality problem that wasn't showing up on the air purifier's built in sensors.

I bought this to monitor air quality in my home and on the go. It is a very clever device. Sometimes the data seem erratic and hard to interpret.

After getting used to how to use the item I’m really impressed with how much information is collected. The App used in conjunction is excellent.Just frightening how much air pollution there is (and how much it decreased during the virus lockdown!).

Je cherchais un capteur d'air mobile car je me déplace souvent dans la journée.Il me permet de mesurer la pollution de l'air dans des lieux fermés. Je m'en sers aussi pour la randonnée et le jogging.Seuls défauts :- 1 semaine pour se régler (les 1e mesures sont fausses)- attache en plastique à l'air fragile : j'ai souvent peur de le perdre, j'aurais préféré une attache métallique pour mettre un mousqueton pour l'accrocher à mon sac à dos- autonomie un peu faible (nécessite une recharge quotidienne)

Je doute très fortement de la précision de ce capteur...Utilise en intérieur dans un air filtré hepa avec d’autres détecteur de pm2.5 qui restent très bas le flow 2 détecte de manière un peu aléatoire de gros pics de particules fines (même en pleine nuit quand rien ne bouge)En revanche si je fais un barbecue, Baies fermées alors que mes autres détecteurs s’affolent (logique) le flow reste en vert...Idem pour le taux de no2 qui dérive constamment... l’ia qui était sensée re calibrer le bidule me laisse plus que dubitatifLe sav contacté n’a même pas daigné me répondre.Bref économisez 150€: sans doute vaut il mieux investir un peu plus mais ne pas se reposer sur un générateur de nombres aléatoires pour sa santé

I've wanted one of these for a while, I feel let down. An extra star for the sleek design, but the battery life is only about half a day, and the app has quite a few flaws. Also, the internal fan seems to have stopped working. I could hear the fan on the first day I got it, but a couple of days later, I no longer can and the readings seem to be about the same now regardless of whether I'm in a building with filtered air or next to a main road in central London. I'll see if Amazon can swap or refund it.

connaitre la pollution environnante à l'instant et les heures qui précèdent, facilité de mise en oeuvre