Near Infrared vs Far Infrared: The Simple Explanation
One of the most common questions sauna buyers ask is:
“What’s the difference between near infrared and far infrared?”
The simplest answer is this:
Near infrared is primarily used as a light therapy.
Far infrared is primarily used as a heat therapy.
Both are forms of infrared energy, but they serve different purposes inside a sauna.
Understanding that difference makes it much easier to understand full spectrum sauna technology.
What Is Infrared Energy?
Infrared energy is a natural form of energy that exists just beyond visible red light on the electromagnetic spectrum.
Although you can’t see infrared energy, you can feel it as heat.
In fact, part of the warmth you feel from sunlight comes from infrared energy.
Sauna manufacturers use infrared heaters and infrared light sources to deliver specific wavelengths in a controlled environment.
What Is Near Infrared?
Near infrared wavelengths are the closest infrared wavelengths to visible light.
Near infrared produces relatively little heat compared to far infrared.
Instead, near infrared is commonly associated with:
- Photobiomodulation
- Light therapy
- Skin wellness
- Recovery applications
Researchers continue studying near infrared light and how it interacts with cells and tissues.
This is one reason near infrared technology has become increasingly popular in wellness devices and full spectrum saunas.
Related Reading:
https://celebrationsaunas.com/what-is-photobiomodulation/
What Is Far Infrared?
Far infrared wavelengths are much longer than near infrared wavelengths.
Far infrared produces most of the heat people associate with infrared sauna therapy.
Far infrared is commonly used for:
- Relaxation
- Recovery
- Healthy sweating
- Daily sauna use
- Cardiovascular wellness support
Most infrared saunas sold today primarily use far infrared technology.
If you’ve ever sat in an infrared sauna and felt a gentle, comfortable heat, you were likely experiencing far infrared energy.
The Easiest Way to Understand the Difference
Imagine standing in front of a campfire.
You can feel two things:
- The light coming from the fire
- The heat coming from the fire
Near infrared is more similar to the light.
Far infrared is more similar to the heat.
Both come from the same source, but they create different experiences.
That simple distinction helps explain why manufacturers often combine both technologies in a single sauna.
Why Full Spectrum Saunas Use Both
A full spectrum sauna typically combines:
- Near infrared
- Mid infrared
- Far infrared
This allows users to enjoy:
- Near infrared light therapy
- Far infrared heat therapy
Many buyers choose full spectrum saunas because they want access to both technologies without having to choose one or the other.
Related Reading:
https://celebrationsaunas.com/what-is-full-spectrum-technology/
Which One Is Better?
Neither.
They simply serve different purposes.
Near Infrared May Appeal To You If You Are Interested In:
- Photobiomodulation
- Light therapy
- Skin-focused wellness applications
- Recovery support
Far Infrared May Appeal To You If You Are Interested In:
- Heat therapy
- Relaxation
- Healthy sweating
- Daily sauna sessions
- Traditional infrared sauna experiences
Full Spectrum May Appeal To You If You Want:
- Near infrared technology
- Far infrared heat
- Maximum flexibility
- Multiple wellness options in one sauna
What This Means for Sauna Buyers
The most important thing to understand is that near infrared and far infrared are not competing technologies.
They complement one another.
Far infrared provides the heat that most people associate with infrared sauna therapy.
Near infrared provides the light-based technology commonly associated with photobiomodulation applications.
That is why many modern premium sauna systems combine both.
Understanding this difference makes it much easier to decide whether a far infrared sauna, full spectrum sauna, or hybrid sauna is the right fit for your goals.
Research & References
Photobiomodulation or Low-Level Light Therapy
Hamblin MR.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5523874/
Infrared Radiation and Biological Effects
National Center for Biotechnology Information (NCBI)
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745411/
Sauna Health Benefits
Harvard Health Publishing
https://www.health.harvard.edu/blog/sauna-health-benefits-202404033030
Clinical Effects of Regular Dry Sauna Bathing: A Systematic Review
Hussain J, Cohen M.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5941775/
Related Reading
How Does an Infrared Sauna Work? Understanding Infrared Heat Therapy
https://celebrationsaunas.com/how-does-an-infrared-sauna-work/
What Is Full Spectrum Sauna Technology?
https://celebrationsaunas.com/what-is-full-spectrum-technology/
What Is Photobiomodulation?
https://celebrationsaunas.com/what-is-photobiomodulation/
What Type of Sauna Is Right for Me?
https://celebrationsaunas.com/what-type-of-sauna-is-right-for-me/
What Is a Sauna? A Complete Guide to Sauna Types, Benefits, and How Saunas Work
https://celebrationsaunas.com/what-is-a-sauna/