![](https://lemmy.ml/pictrs/image/d3d059e3-fa3d-45af-ac93-ac894beba378.png)
I've learned this the hard way. Got two nice, different Panasonics in a row only to have both fail after a relatively short time period ("relatively short" kinda varies for me since I think things that happened five years ago happened "the other day" these days). After the second failure, I just got the cheapest of the Panasonics, and it's outlasted both of the previous ones already and does just as good a job.
Nah. It's grade three, class two. Could be elementary, middle, or high school grade three. That's the way all the schools in Japan and Korea do it. Rooms with floor numbers that aren't in schools are typically all one digit with no hyphen.