In reply to Dan Arkle:
I bought a cheap and cheerful one for when I’m in a hurry to dry out my mtb shoes having previously been very disappointed with a more expensive walking and ski boot one that failed miserably to dry - https://www.amazon.co.uk/Renogy-Warmer-Portable-Adjustable-Folding/dp/B08HS... .
It works fine, simple to use (digital press a few buttons), quick and effective, but has a cheap feel and is lightweight (as in a bit unstable) so even with mtb shoes on it you have to be careful to angle the head to get it to remain upright. Takes about 40 mins to dry to a just damp feeling from fully saturated dripping condition. Would take 4-5 days to naturally air dry, so very handy when I can’t wait.
Edit: oh a quirk of the cheap design is the fan output has a slight bias to one side rather than being even. For the low price though it’s not a prob really as I just swap shoes over half way through the drying process to get even drying!
Post edited at 11:30