I use the stationary clip on 6" fans. It takes a butt load of wind to burn a wind pollinated plant. I use two in a 2x4 tent with another two fans measuring 8". Four fans total.
You're not gonna stay out the tent. Every day you're gonna look at your plants. Each time you check on them. Reposition the fans. Oscillating isn't needed.
Those are similar to the 8" I use. Ones mounted to the ceiling, pointed at a wall. The other is on the floor. By the pots. Flow is also against the wall. One 6" clip on is pointed at the lights. The other is positioned directly at the main colas.
Yeah I have been using regular 12in fan and move it around. Just looking for a nice clip fan or a decent oscialting fan. Wish I could just get a bigger size tent hahahhaha
My cheap 6 inch usb clip fan is on its last leg after about a year. I ordered the Woozoo M15U a few days ago for my 3x3. Has 120 degree oscillation and supports various angles. Looks good enough to try out.
I ran a 3x3 grow tent when i lived in cali and Id just purchase a small 6" off amazon. In a space that small you dont wanna get a fan to big and wind burn your plants.
I found the small Vornado fans at Costco for like $19/ea - and when I checked prices elsewhere found there's 2 models - one that oscillates and one that does not. Most places had the $19 one as the base model that didn't escalate so that Costco price was a good deal after all. I snatched up 1 for work and 4 for 'hobbies'...
You could also consider some combination of PC fans. They come in all sizes and qualities/durability. If you were real crafty you could perhaps fashion some type of rig to do the oscillating movement and just attach the PC type of DC fans...