Such cutting edge, sexy and gripping subject matter will have this thread trending instantly, right? 
But seriously, after last winter spent up a step ladder scrubbing mould off the bathroom ceiling, I'm determined to take preventative measures this year! Room is 2.3 x 2.6 m. The range available on Amazon is kind of baffling to a novice.
So... do you own a dehumidifier? Can you share your wisdom? What capacity do I need? What's a reasonable amount to spend? Thanks in advance lovely people!