Easily record your daily Peak Flow Readings (PFRs) with this Peak Flow Diary designed by an asthmatic for asthmatics. Each page of the diary has a 1-week (7-days) chart for recording your morning and night peak flow readings. The diary has 52-weeks so you can easily record a year of your peak flow readings. Easily portable you can take this diary with you to your Doctors or the Hospital to show the medics your peak flow readings which could aid them...