Here are the normal ranges for ABG (Arterial Blood Gas) levels:

• pH: 7.35-7.45
• PaCO2 (Partial Pressure of Carbon Dioxide): 35-45 mmHg
• PaO2 (Partial Pressure of Oxygen): 75-100 mmHg
• HCO3- (Bicarbonate): 22-28 mEq/L
• SaO2 (Oxygen Saturation): 95-100%

Keep in mind that these ranges can vary slightly depending on the laboratory and the individual’s health status.