If you looking for an air mover but cannot afford the £200 or more, Lidl have an offer starting yesterday on a unit similar to what I use - £30. I got mine from Machine Mart so they are always available but you save about £8 on Lidl offer.
At this price they are not snails or downdrafts, but I found they do an adequate job for the price they cost ie value for money.
Mind you, with this heatwave and more to come, they could have sold out at Lidl by now!