SALT: FROM ANCIENT TRADITION TO MODERN HALOTHERAPY
Cover Art © serikbaib via Canva.com
Salt is something most of us encounter every day, yet its story reaches far beyond the kitchen. For thousands of years, salt has been valued for preserving food, cleansing, bathing, and supporting health and wellness. It was once so valuable that salt trade routes helped shape communities and economies, and access to salt was considered essential to daily life.
Salt’s significance extends beyond its practical uses. Across cultures and generations, it has held an important place in wellness, ritual, and spiritual practice. Salt has been associated with purification, protection, cleansing, preservation, and renewal, making our connection with this seemingly simple mineral both ancient and remarkably diverse.
Today, salt continues to have a place in wellness through halotherapy, commonly known as dry salt therapy. While the beautiful salt rooms and salt caves we see today may feel like a relatively new wellness experience, the story behind halotherapy reaches back nearly two centuries to an unexpected observation deep within a salt mine in Poland.
A Discovery Deep Underground
During the 1800s, mining was notoriously difficult work, particularly for the respiratory system. Miners working underground were regularly exposed to dust, debris, and other airborne particles, and respiratory illness was common among many mining populations. Yet a Polish physician named Dr. Feliks Boczkowski began noticing something unusual among workers at the Wieliczka Salt Mine near Kraków, Poland.
Boczkowski served as a physician to the salt miners and observed that they seemed to experience fewer respiratory problems than might be expected among people spending their working lives underground. This was especially interesting because of the environment in which they worked. Rather than breathing the coal dust and other contaminants associated with many mines, these workers spent their days within the unique microclimate of a salt mine.
Boczkowski became interested in whether that environment might explain what he was observing. He studied the conditions within the mine and believed that its salt-rich air and underground microclimate could have beneficial effects on respiratory health. In 1843, he published his observations about the therapeutic potential of the Wieliczka salt and brine environment, helping establish an early foundation for the use of salt-mine environments for wellness.
His work contributed to what became known as speleotherapy, a practice in which people spend time in the microclimate of natural caves or salt mines. Over time, underground salt environments in Central and Eastern Europe became destinations for people seeking support for respiratory health. The Wieliczka Salt Mine itself would eventually become home to an underground health resort, continuing a story that began with Boczkowski’s observations generations earlier.
From Salt Mines to Modern Salt Rooms
Of course, traveling underground into a salt mine isn’t an accessible wellness practice for most people. Eventually, methods were developed to recreate an important feature of the salt-mine environment above ground, leading to modern halotherapy. The word comes from the Greek halos, meaning salt.
Modern dry salt therapy typically uses a machine called a halogenerator. Pharmaceutical grade sodium chloride is placed inside the machine, ground into extremely fine dry particles, and dispersed into the air of a salt room or chamber. As a person relaxes and breathes normally, the microscopic salt particles are inhaled into the respiratory tract, while other particles naturally settle onto exposed skin.
This is also what distinguishes active halotherapy from simply sitting in a room decorated with salt. Himalayan salt walls, salt bricks, and salt lamps can create a beautiful and relaxing atmosphere, but the halogenerator is what produces the dry salt aerosol used in halotherapy. It allows fine salt particles to circulate throughout the room during the session, recreating an important aspect of the salt-rich environments that first inspired the practice.
How Does Halotherapy Work?
One of salt’s important characteristics is that it is hygroscopic, meaning it attracts water. When microscopic dry salt particles are inhaled, they come into contact with the respiratory tract and airway secretions. This interaction is one reason dry salt therapy is used to support mucus clearance and overall respiratory wellness.
The salt may help loosen and thin mucus and secretions, making them easier for the body’s natural clearance mechanisms to move out of the airways. People often seek halotherapy when experiencing congestion or looking for complementary support for their sinuses and respiratory system. Many people who use halotherapy report feeling that their breathing is more open, congestion is reduced, or mucus is easier to clear following sessions.
Dry salt is also valued for its cleansing properties and has been studied for its potential anti-inflammatory and antimicrobial effects. Halotherapy is used by people seeking support for concerns such as seasonal allergies, sinus congestion, asthma, bronchitis, and other respiratory conditions. Individual experiences vary, but respiratory wellness remains one of the primary reasons people are drawn to dry salt therapy today.
Perhaps one of the most appealing things about halotherapy is how little is required during a session. There is no special breathing technique to learn and nothing that needs to be applied or taken. The halogenerator creates the dry salt environment while the person simply relaxes and breathes.
Salt and the Skin
The respiratory system isn’t the only part of the body exposed to salt during a session. As microscopic salt particles circulate through the room, some naturally settle onto exposed skin. This has led many people to incorporate halotherapy into their wellness routines for skin health as well.
Salt has cleansing, absorbent, and exfoliating properties, and dry salt therapy may help support the skin’s natural processes while helping clear surface impurities. People seek halotherapy as complementary support for a variety of skin concerns, including eczema, psoriasis, acne, and irritation. Because the salt is dispersed through the air, the experience is noninvasive—the particles simply come into contact with exposed skin while the person relaxes.
Our use of salt for the skin certainly isn’t new. Mineral-rich waters, saltwater bathing, soaking salts, and salt-based skin treatments have been used across cultures and generations. Halotherapy offers another way of experiencing salt, using microscopic dry particles rather than salt dissolved in water.
The Wellness of Simply Being Still
There is another part of the salt room experience that has little to do with the microscopic particles circulating through the air. For a period of time, you are given an opportunity to stop. There are no errands to run, emails to answer, notifications to check, or tasks demanding your attention.
Modern life keeps many of us in an almost constant state of stimulation. Phones, work, family responsibilities, schedules, and the expectation that we should always be doing something can make genuine periods of quiet surprisingly rare. Intentionally creating time for rest, slower breathing, and reduced stimulation gives the mind and body an opportunity to settle.
A halotherapy session naturally creates space for that experience. Some people meditate or practice breathwork, while others read, listen to quiet music, close their eyes, or simply sit. There is no right way to use the time, and sometimes having permission to do absolutely nothing is exactly what we need.
We often think about wellness in terms of what we need to do next. We add another practice, appointment, supplement, exercise routine, or task to an already long list. Yet wellness can also mean creating space where nothing is expected of us and allowing ourselves an opportunity to rest, breathe, and reconnect.
Salt as a Spiritual Element
Salt’s connection to human well-being began long before anyone used the word halotherapy. Throughout history, salt has carried spiritual and symbolic meaning in many cultures and traditions. While individual beliefs and practices vary, salt has frequently been associated with cleansing, purification, protection, preservation, and renewal.
Salt has been used in cleansing rituals, baths, blessings, ceremonies, and practices intended to purify people or spaces. In some traditions, it has been used symbolically to establish boundaries or protection, while in others it has been incorporated into religious ceremonies and sacred practices. A substance capable of preserving something physically became, in many cultures, a meaningful symbol of protection, purity, and permanence.
For those who approach wellness from an energetic or spiritual perspective, these ancient associations can add another dimension to a modern salt therapy session. Time in a salt room can become intentional space for meditation, prayer, reflection, grounding, releasing what no longer serves us, or setting an intention. The physical experience of salt and its symbolic association with cleansing can exist together, allowing each person to experience the space in a way that feels meaningful to them.
A salt session does not have to be spiritual to be meaningful. One person may enter because they are interested in respiratory wellness, another may be seeking support for their skin, and someone else may simply need quiet after a long week. For another person, those same minutes may become sacred time to reconnect with themselves.
From Poland to Two Rivers
Nearly two centuries after Boczkowski’s observations deep within the Wieliczka Salt Mine, the practice he helped inspire can now be experienced in salt rooms around the world. One such space is The Salt Vault at Awakened Lakeshore in Two Rivers, Wisconsin, where modern halotherapy has found a particularly unique home. True to its name, The Salt Vault was created inside the original bank vault of the building that Awakened Lakeshore now occupies.
During a session in The Salt Vault, a halogenerator grinds 99.99% pure pharmaceutical grade sodium chloride into microscopic dry salt particles and disperses them throughout the room, where they are inhaled into the respiratory system and naturally settle onto exposed skin. Guests can settle in, get comfortable, breathe normally, and allow themselves time away from the demands waiting outside the vault door. The process brings the concept that originated in natural salt-mine environments into a modern, accessible wellness space.
There is something especially fitting about giving an old vault a new purpose. A space once designed to safeguard things considered valuable now offers a place to make time for something else of value—our own well-being.
Within those walls, an idea that began with observations in the salt mines of nineteenth-century Poland has found its way to a small community along the shores of Lake Michigan.
The Salt Vault is one example of how halotherapy itself has evolved. What once required entering a natural salt mine can now be experienced in wellness centers and salt rooms in communities around the world, while still drawing inspiration from the salt-rich environments that gave rise to the practice. The locations may look very different, but the simple act of sitting within a dry salt environment connects modern halotherapy with a history that began generations ago.
Ancient Salt, Modern Wellness
Nearly two centuries have passed since Dr. Feliks Boczkowski looked at the miners working beneath Wieliczka and became curious about their respiratory health. His observations in the 1800s helped begin a journey from natural salt mines and speleotherapy to the modern halotherapy rooms available today. What started deep underground in Poland has evolved into a wellness practice now experienced in salt rooms around the world, from large cities and wellness destinations to communities such as Two Rivers, Wisconsin.
Yet the larger story of salt is much older than halotherapy. For thousands of years, humans have harvested it, traded it, preserved food with it, bathed in it, incorporated it into wellness practices, and given it spiritual meaning. Few natural elements have remained so consistently woven into human life while taking on so many different roles.
Perhaps that is what makes salt especially interesting within holistic wellness. It can be approached physically, historically, symbolically, or spiritually, and those perspectives do not have to compete with one another. We can appreciate how dry salt interacts with the respiratory system and skin while also appreciating the experience of entering a quiet space and intentionally leaving the outside world behind.
In a culture that constantly asks us to move faster, accomplish more, and stay connected to everything around us, there is something powerful about choosing to stop for a while. A salt room offers an opportunity to breathe, rest, become quiet, and make space for ourselves in a way that can be surprisingly difficult to do in everyday life.
Maybe that is one reason an ancient mineral continues to find a place in modern wellness. From the salt mines of Poland to salt rooms around the world—and even a former bank vault in Two Rivers—the setting may have changed considerably over the past two centuries, but the invitation remains beautifully simple:
