Pass filters are a great tool for eliminating (or reducing) certain frequency ranges.
In this case, I use the bandpass filter to get the range of the human voice through. I set the center value to 800 Hz and a bandwidth of 200 Hz. Thus frequencies below 700 Hz and above 900 Hz are gradually reduced the farther they are from the center frequency.
This does not prevent noise that coincides in the frequency range from 700 to 900 Hz but it helps a lot and at the same time, the natural tone of voice is maintained.
Further control is also possible using the low pass and high pass filters (the bandpass filter is a combination of these two), to better adjust the low and high cut-off frequencies.
In some cases, a compressor can also be used so that loud noises are reduced and are not so annoying.