No, the Apple Watch does not currently have built-in sensors to detect carbon monoxide.
Yes, it is safe to wear an Apple Watch while sleeping. Apple specifically designs the device to be worn overnight, and doing so allows you to utilize built-in features to track your sleep stages, respiratory rate, and overnight vitals.
It is also a good idea to know the signs of a potential CO problem:
An iPhone cannot directly detect carbon monoxide (CO) because it lacks the specialized physical hardware required to sample the air for this gas. However, you can use an iPhone to receive remote alerts by pairing it with a smart CO detector or an Apple HomePod.
Go to the Blood Oxygen app on your Apple Watch. Rest your arm on a table or in your lap, and make sure your wrist is flat, with the Apple Watch display facing up. Tap Start, then hold your arm very still during the 15-second countdown. At the end of the measurement, you receive the results.
Sound Recognition may detect smoke and carbon monoxide alarm sounds and send you notifications when recognized. Sound Recognition should not be relied upon in circumstances where you may be harmed or injured, or in high-risk or emergency situations.
Blood oxygen monitoring was temporarily removed from newly purchased Apple Watches in the U.S. due to a patent infringement lawsuit filed by the medical technology company Masimo. To bypass the patent dispute and allow sales to continue, Apple disabled the sensor on newer models in the U.S.
There are also light signals that can help you detect carbon monoxide. Keep an eye on the pilot flame on your gas stove, water heater or other household appliance. If it goes out frequently, glows strangely or weakens, the presence of carbon monoxide may be the cause.
The OSHA personal exposure limit (PEL) for CO is 50 parts per million (ppm). OSHA standards prohibit worker exposure to more than 50 parts of CO gas per million parts of air averaged during an 8-hour time period. The 8-hour PEL for CO in maritime operations is also 50 ppm.
One of the most common early symptoms of carbon monoxide (CO) poisoning is a headache, often described as dull or persistent. Because CO is odorless and colorless, these early signs are frequently mistaken for the flu or food poisoning.
Carbon monoxide (CO) is a silent, odorless, and invisible gas. Because you cannot see or smell it, you must rely on carbon monoxide detectors, warning signs around your appliances, and your own physical symptoms to identify its presence.
To clear carbon monoxide (CO) from your body, you must immediately get to fresh air and seek emergency medical help. There is no quick "at-home" cure; medical treatment with pure oxygen is required to safely displace the toxic gas from your bloodstream.
For oxygen saturation, the Apple Watch showed excellent correlation at rest for all cardiac patients with regular and irregular rhythms, with <4% outliers, and after exercise sessions in cardiac patients with regular rhythm, whereas a slightly lower (good) correlation was observed after exercise sessions in cardiac ...
A purple person icon on your Apple Watch means that the Personal Focus Mode is turned on. This setting filters notifications and alerts based on your current activity to reduce distractions. The icon typically appears because it has synced from your iPhone or was activated in the watch's Control Center.
Sleeping with your Apple Watch on is entirely optional, but highly recommended if you want to track sleep stages, monitor overnight vitals (like heart rate and blood oxygen), or use silent, wrist-vibrating alarms. It is safe, provided your band isn't too tight and you clean your wrist and watch regularly to prevent skin irritation.
How does carbon monoxide (CO) affect us? When inhaled, CO binds to our red blood cells, which usually carry oxygen around our bodies. CO molecules take the place of oxygen in the bloodstream, depriving vital organs and tissues of oxygen. CO molecules are also toxic to our organs, including the brain.
The term "silent killer gas" almost universally refers to Carbon Monoxide (CO). It is a colorless, odorless, and tasteless gas produced by the incomplete burning of fossil fuels (like wood, coal, propane, and gasoline). It is deadly because it replaces oxygen in your bloodstream, preventing vital organs from functioning.
In high concentrations of carbon monoxide, it can take fewer than five minutes to get carbon monoxide poisoning. Under lower concentrations, it can take an hour to two hours to cause poisoning.
An oxygen level (SpO2sub 22) of 92% is generally considered borderline. While it technically provides adequate oxygen to your tissues, it is on the lower end of the spectrum and often signals the need for monitoring.
Apple did remove the blood oxygen measuring capabilities on newly purchased models in the US in January 2024 due to a patent dispute. However, this issue has since been resolved.
Yes, the Apple Watch can help detect signs of moderate to severe sleep apnea. It tracks subtle wrist movements (using the accelerometer) to look for "breathing disturbances" while you sleep.
Two common warning signs of carbon monoxide (CO) poisoning are dizziness and a dull, throbbing headache.
Yes, opening windows and doors helps dilute carbon monoxide (CO) by letting fresh air in. However, ventilation is only a temporary measure. If your CO alarm is sounding or you suspect a leak, the priority is to shut off the source, evacuate, and call 911.
Carbon monoxide is called the silent killer. You can't see it or smell it, but it can make you very sick or even be deadly. This November, take simple steps to protect your home and family: Check your CO detectors, inspect appliances, and never use generators or fuel-burning tools indoors.