Created this DIY bed fan (AKA BedJet) using the following:

• 1½ inch 195 CFM Inline Duct Ventilation Fan (https://a.co/d/hsgWzHm)
• 1½ inch PVC pipe, 5' section
• (2) 1½ 90 degree pvc coupler

I designed a cap to go on the intake so that nothing is sucked into the fan blades

• Then a coupler to go from the fan to a 1½ inch pvc pipe.
• To a 90 degree angle to go from the floor where the fan is located
• To a 1½ inch pipe that goes all the way up the side of the bed.
• To a 90 degree angle.
• To a 1½ inch pipe
• and lastly to the reducer that blows onto the bed.