I work full-time during the day. I pump at work, and DS (age 9 weeks) eats EBM from a bottle during the day. We were using the Playtex Ventair bottles, but DH (who feeds DS from the bottle) doesn't like these bottles b/c of problems with air getting into the bottle. So, Friday I purchased the Playtex Nurser bottles. The issue that DH is having with these bottles is that he can't get the air to go all the way out of the bottle drop-in. Also, DS is apparently having a difficult time getting the milk to come out of the nipple. Do any of you have any suggestions about what we're doing wrong and/or any helpful advice? Thanks so much.