8 Warning Signs of Low Blood Oxygen Levels

📉 What’s Considered Low Blood Oxygen?

Normal oxygen saturation (SpO₂) levels are:

• 95–100% for healthy individuals
• Below 92% is considered low, especially if persistent

You can check your oxygen levels using a pulse oximeter — a small device that clips onto your fingertip.

🩺 What Causes Low Oxygen Levels?

Several conditions can interfere with your lungs’ ability to take in oxygen or your blood’s ability to carry it, including:

• COPD or asthma
• Pneumonia or COVID-19
• Heart failure
• Anemia
• Sleep apnea
• Pulmonary embolism
• High altitudes

✅ What to Do if You Suspect Low Oxygen

• Use a pulse oximeter if available
• Sit upright and breathe deeply
• Avoid physical exertion
• Get fresh air or use supplemental oxygen (if prescribed)
• Call 911 if symptoms are severe or include chest pain, confusion, or cyanosis

🧠 Final Thoughts

Low blood oxygen levels are not something to ignore. While some symptoms can seem mild at first, they can quickly progress into serious complications affecting your heart, lungs, and brain.

If you or someone you love is experiencing these warning signs, get checked sooner rather than later. Your body depends on oxygen — and it’s always better to listen to it before things escalate.

Would you like a printable version, checklist, or infographic of these signs? I can also condense this into a social media post if needed!