Can't comment on a sale but the View Plus is a pretty incredible little air quality tester. I move it around periodically when I'm concerned about certain spots and it almost immediately updates with different data. I haven't authenticated the data but the thing has earned my trust. Great for Radon, CO2, VOCs and Particulate Matter readings.

Don't take it all grammar police but a vehicle has brakes and you can break something. But the noun is brake and the verb is to break. But you can also be braking as in using your brakes.