Dust went into my MacBook left speaker So last night when I finished using my MacBook and then I noticed the left speaker had some small ball of dust. So I thought of taking it out in the morning tomorrow. So then when I tried to take it out it instead it went inside I tried gently shaking the MacBook to make the small dust particle to come out through the speaker. But no luck/ Should I worry about my speaker getting damaged or dust flying into the logic board and making my MacBook slow. As dust is a poor conductor of electricity.

PS. Can I just set my MacBook fan speed to 6000RPM to kick out the dust?
Because dust doesn't conduct well, you should not worry about anything getting damaged, especially not if it's small enough to fit through the speaker.

Fact is that a lot of dust slows down electronics, but such small quantities, as said, shouldn't be a problem.

If you still want to get it out, you should probably do as Solar Mike said and just vacuum it a little.