Uy, if baby inhaled smoke for 30 mins, best to call your pedia or go to the nearest clinic to check, ha, better safe than sorry with breathing and lungs, lalo na sa babies. A few of us moms learned the hard way na smoke exposure, especially sa bata, kailangan lang talaga i-monitor properly ng doctor para sure baby's okay. Kung notice mo na may labored breathing, persistent cough, or parang uneasy lang, go to emergency na agad, okay?