Just watched the review on the Wen. I've had this unit for quite a while I can say it's great. No complaints at all. I have a shop about the size of a one stall garage. I do more sign carving using a router then scrolling, 60/40 and this keeps up with that dust. I run it while working then use the timer after I leave. Never an issue with the electronics. Ive had to replace a few filters and when I do, you can tell it's working. Not a real replacement for a face filter. It's a good addition. Well worth the $111. Hangs pretty much in the middle of the shop. It's quiet also. Just thought I through a thumbs up on this.