1Strengthen Muscles: Utilized to enhance the resilience, persistence, reduction of breathlessness of respiratory muscles, fortify your respiratory muscles, allow you to breathe with greater ease 2Good For Health: A device for exping lung exercise can mitigate breathing difficulties, alleviate dyspnea, enhance athletic performance, expedite recuperation, elevate comprehensive health energy 3Simple Operation: Used for respiratory exercises anytime anywhere, it is suitable for people of all ages Most individuals only need to utilize it once or twice a day, for 1 to 5 minutes each time only 4With hole adjustment: The resistance of the exper can be regulated by adjusting your breathing inhalation, the breathing tool can be customized according to your individual needs 5Perfect For Smoker: Significantly enhance lung function, it is effective in preventing respiratory illnesses It is especially useful for the elderly, smokers, individuals who suffer from respiratory conditions such as asthma 6Acrylic Material: Constructed with acrylic medical PP, stainless steel materials, it is tasteless, safe healthy, environmentally friendly has a long service life