gorilla5150 wrote:I'm guessing no-one in this thread has a canopy. I have a canopy and don't get any dust in the tray. I do have a small vent in the roof to prevent dust ingres though. cost $100. I believe it works by creating air pressure in the tray.
Yep. It's science! The biggest reason for dust getting into your tray is that the airflow during travel creates negative air pressure in the tray, a vacuum if you will. The addition of the air vent on the canopy at very least equalises the pressure, and may even make it positive, meaning the dust is blown away from the gaps rather than sucked towards them.
It's like the difference between breathing in under water vs blowing bubbles. The second one gets much less water in your lungs!
The seals work differently, basically removing the gaps. Both combined should work the best.
I wonder if anyone has put a vent on the hard tonneau cover (as opposed to the canopy), and whether it also was effective? (And did it look good, or shit?)
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