Some people have problems with their oxygen levels but they don’t want the whole world to know about it. Many people just don’t need the hassle of explaining their life story to strangers. With the Nonin go2 achieve, checking your oxygen levels can be a secret. You can just excuse yourself and walk away. You just put the little meter on your finger and the results appear. You could even check your pulse and oxygen levels right in front of someone and they wouldn’t know what you were doing. Your little problem could stay a secret for as long as you want.