Breast pump question

Ashley • Due 11/29/19, Born 12/5/19 💙

This may be a dumb question, but I’m a FTM and I’m not sure if this is ok or not. So my fiancé’s sister gave me her pump and all the things that come with it, including bottles. Is this safe to use? She has cleaned them, but I didn’t know for sanitary reasons if it is okay to use or not??