Use APKPure App
Get Oximeter old version APK for Android
مقياس التأكسج يسمح لك أن ترى نسبة الأكسجين للتنفس إلى ارتفاع الخاص بك.
Oximeter allows you to see the percentage of breathable oxygen to your altitude. The percentage of oxygen is determined by pressure setting the 100% as the pressure at sea level.
Download Oximeter and check what percentage of oxygen are you breathing.
Also included tips for altitude sickness and water boiling point info.
Advise:
DO NOT USE FOR MEDICAL USE!