Good Morning, Baachitraka,

Dust almost never adheres to the emulsion side of a negative. After putting the negative in the carrier, hold it under the enlarger lens (light on, of course) to check for dust. Then, to the extent that you can, check again after sliding the carrier into place. Dust can settle on the negative as the carrier is inserted. I don't have much problem with that, but occasionally, I'll need to remove and re-insert the carrier two or three times before finally lowering the condenser head, even though I use an antistatic brush. It also helps to use MF and LF negatives so that any small inperfections in the negative are less noticeable in the print.