Watch This Before Buying the View Plus Air Quality Monitor by AirThings 

This review is disappointing. I bought my Airthings View after seeing the review. The device is delivered with No instructions. Thier tech support cryptically advised to fist load the App. The App Store shows 4 different Apps. Another frustrating day to have them send a picture of the "suggested" App. The device has frozen multiple times and has been non functional. Their tech support is a Bot which is incapable of providing needed help. I would advise NOT TO BUY this device until the supplier sets into operation a real and effective support network. BUYER BEWARE (as opposed to the gist of the review).

Fuck this thing, absolute pain in the ass to set up. Doesn't want to pair, doesn't want to connect to wifi. Avoid.