My father's oxygen level is fluctuating between 94 to 97 with lower level recorded after dinner while the higher level at the noon time. How can we improve the oxygen level (kindly suggest some measures). He is having problem of asthma so is it advised to take stream and do some breathing yoga exercise like Anulom vimol.

Patient is advised deep breathing exercises,jogging,swimmingquit smoking,eating healthy diet,drinking plenty of water, can improve oxygen saturation.