Ah sis, I feel you, going back to work with a preemie is extra stressful! Honestly, the fastest way para sa'kin is air-drying in a clean, covered container at your desk (or break room if available), then sanitizing with those disposable sterilizing wipes or a small electric sterilizer kung may outlet, way faster than boiling at work. Some moms swear by having two sets of pump parts so while you're using one, the other set dries, tapos you just sanitize both in the evening lang when you get home, which honestly saves time during the day. If you're worried about bacteria buildup during work hours, quick rinse with boiled water right after pumping helps, then let it air dry covered, not foolproof pero mas practical talaga for working moms. It might be worth checking with your pedia about what's safest for your preemie specifically, since every baby's situation is different!