Is a radon level of 3.5 safe?
http://b3.zcubes.com/v.aspx?mid=2365282&title=what-does-radon-testing-chattanooga-mean
It's a great little drone as well as one that has actually encouraged many first-time pilots to take off. We need to confess: we've fallen a little crazy with the Mavic Air. It's a wonderful drone for beginners.