We have a couple like this which i was massively sceptical of but seem to work… they have a water tank & small ultrasonic thing that vaprorises the water into the air flow.
Work best when blowing directly onto you but do a surprising job.
We’ve got one and it does provide some cooling, but it’s definitely closer to a fan than a full-on A/C unit. It takes the edge off the heat, but when we’ve had the really hot weather for the last couple of summers it’s barely made a dent in the heat.
It’s going to raise the humidity in whatever room you’re using it in, so maybe not ideal for an area you’re exercising in?