iFixit tests how the anti-dust membrane in new MacBook Pro really works

iFixit was the first to discover that Apple’s quieter, redesigned MacBook Pro keyboards featured a membrane beneath the keycaps, which a leaked Apple repair document confirmed was to help block out unwanted dust and debris from damaging the delicate mechanism. Now, after a more thorough teardown and testing, it has confirmed that the new membrane succeeds in doing just that.
When testing the keyboard, iFixit pumped the device with a fine, powdered paint additive to see if the new membrane