Suctioning of NOse Therapy in Bronchiolitis

Research Questions: Primary: In otherwise healthy infants 4 weeks to 12 months of age discharged home from the ED with acute bronchiolitis,1 is there a difference in the probability of "treatment failure" by 72 hours post discharge from the index ED visit in those receiving nasal suctioning via Zo-Li device prior to feeds compared to infants who receive nasal suctioning via bulb? Treatment failure is defined as 1) any bronchiolitis-related healthcare visit, except visits that have occurred only due to ED-recommendation at time of ED discharge or 2) the use of additional (non-study assigned) suctioning devices (see Outcome Measures section) within approximately 72 hours post discharge at the index ED visit. Hypothesis: We hypothesize that the infants who undergo scheduled nasal suctioning via ZoLi device will experience a lower treatment failure probability by approximately 72 hours post discharge from index ED visit compared to those managed by suction via a bulb. Secondary: 1. In these infants, is there a difference in the mean number of medical visits for bronchiolitis (defined as #1 under primary outcome above) within 72 hours of ED discharge? 2. In these infants, is there a difference in the mean number of unscheduled medical visits for bronchiolitis within 72 hours of ED discharge? 3. In these infants, is there a difference in the mean number of ED visits for bronchiolitis within 72 hours of ED discharge? 4. In these infants, is there a difference in the probability of a parent reporting normal/near normal feeds on approximately 72 hours discharge? 5. In these infants, is there a difference in the probability of a parent reporting normal/near normal sleeping on approximately 72 hours post ED discharge? 6. For the parent, is there a difference in the probability of a parent reporting their own normal/near normal sleeping on approximately 72 hours post ED discharge? 7. In these infants, is there a difference in the probability of parents reporting at 72 hou