https://www.amazon.com/dp/B01M0X1SOY
Amazon has B-Air FIRTANA-20X High Velocity Electric Industrial and Home Floor Fan, 20" on sale for $28.55. Shipping is free w/ Prime or on $25+ orders.
This is the lowest ever per CCC. Seems to hover ~$40 normally which would be 20-30% off and reviews make it sound pretty strong. Must be being discounted now that winter is starting up.
https://www.amazon.com/B-Air-FIRT…199&sr=8-4