Different noises need different investigations. A low steady hum, a wide rushing sound and a desk thump do not share one cause simply because they appear between words. Listen to a short silent section and describe what you hear before applying a repair.
Compare the signal path
Keep the microphone in place and record a brief sample. Change one safe connection at a time, such as moving a cable away from a power supply or comparing a tested direct USB connection with a hub. Do not open equipment or change electrical safety arrangements.
If the sound follows a physical desk movement, check the stand and cable contact. If it continues at a steady level while nobody moves, inspect room equipment and the recording chain. A laptop fan may get louder only after the computer has been busy for several minutes.
Write down which change affected the noise. This is more useful than trying several filters and forgetting how the original sounded.
Preserve speech while testing repairs
Make repair experiments on a copy or in a reversible project step. Listen to both a pause and a spoken phrase. A setting that removes a low background tone may also make the voice thinner if it removes too much useful sound.
If the problem is severe and the speakers are still available, a new take in a cleaner setup may be the simplest solution. Save the original and the test samples so another editor can compare them.
End with a repeatable working setup rather than an unexplained effect chain. Clear notes about the cause help the next episode more than a one-off repair that nobody can reproduce.