Even in oxblood, however, this is still a utilitarian shoe that looks as good with hardy workwear as it does with relaxed tailoring. Here, we explain how much pulse oximeters typically cost, the key features worth looking for and how to decide if buying one is right for you.

We implemented a Great Value badge that highlights good products that are at least 20% cheaper than the average product we've tested in pulse oximeters. Find out more about how our Great Value recommendations will help you save money.As any menswear aficionado will know, brogues aren’t a specific type of shoe. The term just refers to the statement perforations on the leather, and those can be applied to Oxfords, Derbies or anything else. Brogues do have their own character, though, one that walks a masculine line between smart and casual, and is a little less town and a little more country. Make sure you thoroughly read the instructions that come with your pulse oximeter, but as a general guide, these tips can help to get accurate readings:

Don't fall for false claims to be 'NHS approved', which you might spot in some pulse oximeter marketing info. We've listed some of the phrases you might see when you're looking for a pulse oximeter, and what they mean: Pulse rate The number of times your heart beats per minute. For a healthy adult, this is usually around 60-100bpm. On most pulse oximeters this is displayed as a number, but it can also be in the form of a bar graph or plethysmographic waveform (a continuous curve showing your heart rate). OLED screen Most devices have basic LCD screens, but a handful have slightly more advanced OLED screens.SpO2 reading A measurement of how much oxygen is in your blood. Every pulse oximeter has this feature, as it's the main thing they're designed to measure. A SpO2 reading of less than 92% (or 88% for those with chronic obstructive pulmonary disease) can suggest someone is seriously ill and needs immediate medical attention. Attach the clip of the pulse oximeter onto your index finger (the finger next to your thumb) or your middle finger, and wait for the readings to appear on the screen. If you've been told by a medical professional that you should use a pulse oximeter at home, you need to make sure you're using it as effectively as possible to get the most accurate picture of your health. During the pandemic, some doctors have suggested buying pulse oximeters to test your oxygen levels at home as a precaution, in case you become severely unwell with Covid-19. Trials are ongoing, but if you're unwell, it's important not to rely on these devices without advice from a medical professional.