In order to remove respiration related motion artifacts from an $ECG$ signal, the following filter should be used:
- low-pass filter with $f_c=0.5\;Hz$
- high-pass filter with $f_c=0.5\;Hz$
- high-pass filter with $f_c=49.5\;Hz$
- band-pass filter with passband between $0.1\;Hz$ and $0.5\;Hz$