General guidelines for asthma treatment are at the heart of this wonderful invention. To maintain a clean air supply around you, you need this device and you can sleep like a baby, wake up rested and lead a normal life. Many are the people who have provided testimonies to the greatness of this machine. They have all been helped considerably and their asthma suffering has almost subsided completely. The machine effectively removes allergens from the air we breathe, and you will definitely know the difference once you have tried the device.