EEG bandpass filtering locutoff and hicutoff syntax

I have been confused with this basic question for a while. If I want to keep the EEG data ranging from 0.05Hz- 80Hz when doing the bandpass filtering step, should I run: EEG = pop_eegfiltnew(EEG, 'locutoff', 0.05, 'hicutoff', 80)or EEG = pop_eegfiltnew(EEG, 'locutoff', 0.05, 'hicutoff', 80, ‘revfilt’, 1)? Thank you so much for anawering this question!