I advise parents to use this device.  It is actually a baby nose-blow device of a particular type (superior efficiency).  Thanks to the inhaling controlled by the mother, the father of the child or another person, secretions will collect in the reservoir.  A cap filter (cotton-made and changed for each operation) prevents secretions to rise up to the mouthpiece.

This model overruns various copies on the market:  

1. its parts are easy to clean;
2. the quality of its hard thick plastic allows a perfect repeated cleaning and a daily sterilization (10 minutes in boiling water);
   
3. No complicated delicate pieces to block after only a few uses.
4. no need to buy filters ... a simple cotton is sufficient to ensure genuine protection.
   

                              Versus the new one

                                        Unit-Dose Saline