Cheap smoke absorber

[pigrew]

I just purchased a 493-clone smoke absorber. The parts looks nearly identical to the actual Hakko model, though I have a few issues with it:

• Strain relief is a zip-tie that isn't tightened enough.
• Sharp wood-screws used to hold the fan in place are placed with their threads touching wires.
• The neutral wire was switched, not the hot wire. (Not that it really matters since there is no exposed metal).
• Why did they use a three-prong power-plug? The ground-wire is floating. An unpolarized two-prong plug would be nicer, and they could have used two thicker wires instead of the three 0.5mm^2 wires they used (for the same price).
• The fan is Sumom. Why do they have to call it something so similar to a name brand? Upsetting. Does CE mean chinese-export? Somehow I can't believe that it's actually meets CE standard. Since it's sold in the USA, I'd expect it have the UR mark, too.
• There are no marking on the exterior of the unit to state its required voltage or current, or that it's UL certified.
• I doubt it's actually ESD-dissipative plastic, but I don't know how to verify that.
• The power cord is a little bit short, especially after redoing the strain relief.
• The labels on the unit's top are just stickers. I really don't understand why the put the on/off stickers on the unit, as it'd look more professional without them.

Do I regret buying it? Somewhat, it seems to be false advertising, and unsafe as sold. The major remaining issue is if the plastic is ESD-safe. But, for $22 after shipping, I can't complain too much.

I've redone the strain-relief and made the unit a bit safer, as shown in the attached photos. I'd suggest that others do the same.