Best location for a Hygiene Station?

Dear all, I am wondering where the hygiene unit will be best placed. By creating a master hygiene unit in the entrance or by making a small hygiene unit to all lines in production. We have a different line, thanks. 

Qc man, our facility has hygiene stations located by major entrances and all break/bathroom areas.  We do not maintain them in production areas, they can be messy and can contaminate if not properly secured and stored.

Cheers!