The Role of Near, Mid, and Far Infrared in Infrared Sauna Therapy

Infrared saunas are a relatively new addition to the wellness scene, but they are quickly gaining popularity for their many health benefits. These saunas use infrared light to heat the body directly, leading to a range of physical and mental benefits. 

At Salus Sauna, we believe that infrared saunas are one of the most underrated wellness tools. While saunas have been around for centuries, infrared saunas have only recently become more popular. In this blog post, we’ll discuss what we wish everyone knew about infrared saunas, including the science behind them, their benefits, and some interesting facts. So, read on to discover what makes infrared saunas so special and how they can help you feel better inside and out.

What is an Infrared Sauna?

An infrared sauna is a type of sauna that uses infrared heaters to emit infrared light waves that are absorbed by the body, resulting in heat generation. Unlike traditional saunas that use steam or heated air to warm the body, infrared saunas use infrared radiation to directly heat the body, resulting in a more gentle and therapeutic experience.

The infrared radiation used in infrared saunas is similar to the radiation produced by the sun but without harmful UV rays. This radiation is emitted by infrared heaters that are typically made of ceramic, carbon, or a combination of both. The heaters emit infrared light waves that penetrate the skin and heat up the body directly, without heating up the air around it.

Infrared saunas come in different sizes and shapes, ranging from small portable units to large outdoor models. They can be made of different materials, including wood, metal, and even plastic.

The Role of Near, Mid, and Far Infrared in Infrared Sauna Therapy

Infrared saunas use three types of infrared wavelengths: near, mid, and far. Each type of wavelength has unique benefits for the body and contributes to the overall therapeutic effects of infrared sauna therapy. The most common types of infrared saunas are the far-infrared sauna and the near-infrared sauna.

1. Near Infrared (NIR)

Near-infrared wavelengths have a shorter wavelength and penetrate the skin. These waves are shorter and produce a more intense heat that is ideal for skin health and beauty treatments. Near-infrared is primarily absorbed by the skin and can help improve skin health by stimulating collagen production and reducing the appearance of wrinkles, fine lines, and scars.

In addition, near-infrared has been shown to have anti-inflammatory effects, which can help reduce pain and swelling in the body. Near-infrared therapy may also have a positive effect on the immune system by increasing white blood cell production and enhancing the body's ability to fight off infections.

2. Mid Infrared (MIR)

Mid-infrared wavelengths have a slightly longer wavelength than near-infrared and penetrate the body more deeply. MIR is primarily absorbed by the muscles and can help improve circulation by increasing blood flow to the muscles.

MIR has been shown to have a positive effect on joint and muscle pain by reducing inflammation and increasing flexibility. It may also help improve cardiovascular health by increasing heart rate and blood flow.

3. Far Infrared (FIR)

Far infrared wavelengths have the longest wavelength and can penetrate the body the deepest. It can penetrate up to 1.5 inches into the body. This makes far-infrared saunas ideal for deep-tissue healing and detoxification. FIR is primarily absorbed by the adipose tissue (fat cells) and can help promote weight loss by increasing metabolism and burning calories.

In addition, FIR has been shown to have a positive effect on the cardiovascular system by reducing blood pressure and improving circulation. It may also help improve detoxification by increasing sweating and eliminating toxins from the body.

The Comfort and Benefits of an Infrared Sauna

Infrared sauna therapy works by emitting infrared radiation that is absorbed by the body. This radiation penetrates deep into the tissues, causing them to heat up and increasing blood flow. Infrared sauna therapy works by heating the body at the cellular level, which increases blood flow and stimulates the lymphatic system. This can help the body to eliminate toxins, reduce inflammation, and boost the immune system.

Studies have shown that infrared sauna therapy can be beneficial for a variety of health conditions, including high blood pressure, chronic pain, and depression. It may also help to improve skin health and reduce the signs of aging. Infrared sauna therapy has also been shown to improve cardiovascular health, lower blood pressure, and reduce the risk of chronic diseases such as diabetes and Alzheimer's.

There are numerous benefits to using an infrared sauna. From improving skin health and detoxification to pain relief and stress reduction, there are many reasons to consider adding an infrared sauna to your wellness routine. 

The Difference between Traditional Saunas and Infrared Saunas

In traditional saunas, the air is heated, which in turn heats the body. This is typically done with a stove or heater that uses rocks or other materials to store and radiate heat. The heat is then transferred to the body through convection and conduction. In contrast, infrared saunas use infrared radiation to directly heat the body, which can penetrate up to 1.5 inches beneath the skin. The air temperature in the sauna can be kept lower, making it more comfortable to use.

This means that infrared saunas can produce more intense sweat at lower temperatures compared to traditional saunas. Additionally, the humidity levels in infrared saunas are much lower than in traditional saunas, which can make the experience more comfortable for some people. Infrared saunas also tend to be more energy-efficient and produce less humidity than traditional saunas.

The Myths and Misconceptions about Infrared Saunas

There are several myths and misconceptions about infrared saunas, including that they can cause skin damage or that they’re not safe for people with certain health conditions. However, these are largely unfounded. Infrared saunas are generally safe for most people, and there is no evidence to suggest that they can cause skin damage or other negative effects.

  1. Infrared Saunas are Dangerous for People with Health Conditions

One of the most common myths about infrared saunas is that they are not safe for people with certain health conditions. However, this is largely unfounded. Infrared saunas are generally safe for most people, and many people with health conditions can benefit from the use of an infrared sauna. In fact, infrared saunas have been used in clinical studies to help treat conditions such as chronic pain, depression, and even cancer.

  1. Infrared Saunas can cause Skin Damage

Another common myth about infrared saunas is that they can cause skin damage. However, this is also largely unfounded. Infrared saunas emit a type of heat that is different from the heat produced by traditional saunas, and they do not produce harmful UV rays. As long as you follow proper temperature and hydration guidelines, infrared saunas are safe for your skin.

  1. Infrared Saunas are Just a Fad

Some people may believe that infrared saunas are just a passing trend or fad, but the truth is that they have been around for decades and continue to gain popularity. Infrared saunas have been used in Japan since the 1980s, and they have been used in clinical studies for various health benefits. As more people discover the benefits of infrared saunas, it’s likely that their popularity will continue to grow.

  1. Infrared Saunas are Expensive

While some people may think that infrared saunas are expensive, there are actually many affordable options available on the market. In addition, investing in an infrared sauna can actually save you money in the long run by reducing your healthcare costs and providing a range of health benefits.

  1. Infrared Saunas are only for Relaxation

While infrared saunas are certainly relaxing, they offer much more than just a way to unwind after a long day. Infrared saunas have been shown to provide a range of health benefits, including improved circulation, pain relief, stress relief, and even weight loss. So, while relaxation is certainly a benefit of using an infrared sauna, it’s just the tip of the iceberg when it comes to the potential benefits of this powerful tool for health and wellness.

Interesting Facts about Infrared Saunas

Infrared sauna therapy has a wide range of benefits for both physical and mental health. Here are some interesting facts about infrared saunas that you may not know:

  1. The Origins of Infrared Saunas:

Saunas have been used for centuries as a way to promote health and relaxation. However, the use of infrared technology in saunas is a relatively new development. In the 1960s, researchers discovered the therapeutic benefits of infrared light, and in the 1970s, the first infrared sauna was introduced in Japan. Since then, infrared saunas have become increasingly popular around the world for their unique benefits.

  1. The Benefits of Infrared Heat:

Infrared saunas use light to generate heat, which is absorbed by the body to create a deep, penetrating warmth that can help to relax muscles and soothe joints. Unlike traditional saunas, which can be uncomfortably hot and dry, infrared saunas are designed to be more comfortable and therapeutic. In addition to promoting relaxation, infrared heat has been shown to improve circulation, boost the immune system, and even help with weight loss.

  1. Infrared Technology and Space Travel:

Infrared technology has been used in space travel for decades. NASA has used infrared cameras and sensors to study the Earth, other planets, and the universe beyond. Infrared technology is also used in spacecraft to regulate temperature and control humidity. The technology has even been used to create specialized spacesuits that protect astronauts from extreme temperatures and radiation.

  1. Infrared Saunas and Skin Health:

Infrared saunas have been shown to improve skin health in a number of ways. The heat generated by the sauna can help to stimulate collagen production, reduce the appearance of fine lines and wrinkles, and improve overall skin tone and texture. In addition, infrared heat can help to detoxify the skin by promoting sweating, which can help to flush out impurities and toxins from the body.

  1. Clinical Applications of Infrared Saunas:

Infrared saunas have been studied for their potential therapeutic applications in a variety of clinical settings. Some studies have suggested that infrared heat can help to reduce pain and inflammation, improve cardiovascular health, and even alleviate symptoms of depression and anxiety. While more research is needed to fully understand the potential benefits of infrared saunas, the growing interest in this technology suggests that it may have a promising future in the field of health and wellness.

Frequently Asked Questions

Q1: How often should I use an infrared sauna?

There is no one-size-fits-all answer to this question, as the frequency of sauna use depends on individual goals and preferences. Some people use an infrared sauna daily, while others use it once or twice a week. It is important to listen to your body and avoid overdoing it.

Q2: Is there any scientific evidence to support the health benefits of infrared sauna therapy?

Yes, there have been many studies conducted on the health benefits of infrared sauna therapy. Some studies have shown that it can improve circulation, reduce inflammation, and boost immunity, among other benefits.

Q3: Are there any risks or side effects associated with using an infrared sauna?

While infrared sauna therapy is generally considered safe, there are some risks and side effects to be aware of. These may include dehydration, overheating, and dizziness. It is important to stay well-hydrated during and after sauna sessions and to speak with a healthcare provider if you have any concerns or underlying health conditions.

Q4: Can I exercise in an infrared sauna?

While it is possible to do light exercises, such as stretching or yoga, in an infrared sauna, it is generally not recommended to engage in intense exercise while in the sauna. This is because the heat can cause you to become dehydrated and overheat, which can be dangerous.

Q5: Do I need any special equipment to use an infrared sauna?

You do not need any special equipment to use an infrared sauna, as most saunas come fully equipped with everything you need. However, you may want to bring a towel or water bottle with you for comfort and hydration during your session.


Infrared saunas are an excellent tool for promoting overall health and wellness. They provide a wide range of benefits, including detoxification, improved circulation, pain relief, stress relief, and even weight loss. By understanding the science behind infrared saunas, the differences between traditional saunas and infrared saunas, and the importance of proper temperature control and hydration, you can maximize the benefits of your infrared sauna sessions. And with their growing popularity, it’s likely that we’ll continue to discover even more benefits of infrared saunas in the years to come.


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