Independent Literature Library

Research & Scientific Literature

Exploring the Science of Dry Salt Therapy

Halotherapy, commonly known as dry salt therapy, has been studied in clinical and research settings around the world. Researchers have explored the use of dry salt aerosol and controlled salt environments across a variety of areas, including respiratory function, bronchial responsiveness, quality of life, exercise performance, skin health, and general wellness.

Scientific interest in halotherapy continues to grow. Research includes clinical trials, pilot studies, scientific reviews, and other investigations using different salt concentrations, treatment protocols, equipment, and participant populations.

Below, you can explore published research and scientific literature examining halotherapy and dry salt therapy.

44 studies, 4 educational resources and 4 videos shown.

Selected for study design and relevance, not for favorable results. Limitations are listed in each summary.

Randomized Controlled TrialCOPDRespiratory Health

The effect of inhaled dry salt on pulmonary mucociliary clearance in obstructive lung disease: A randomised, placebo-controlled, crossover study

Rie Skovly Thomsen, Clara Mikkelsen, Naja Enevold Olsen, Hrefna Sæunn Einarsdóttir, Mohamed Attauabi, Ronan M G Berg, Henrik Harboe, Jann Mortensen

Clinical physiology and functional imaging · 2026 · Denmark

A randomized, placebo-controlled crossover trial in 25 people with COPD found no statistically significant improvement in mucus clearance after a single 40 mg dose of dry sodium chloride.

Systematic ReviewCOPDRespiratory HealthScientific Reviews & Background

A review of halotherapy for chronic obstructive pulmonary disease

Rachael Rashleigh, Sheree M S Smith, Nicola J Roberts

International journal of chronic obstructive pulmonary disease · 2014 · Australia / United Kingdom

A systematic search and narrative synthesis critically assessed halotherapy evidence for COPD, ultimately including four studies with 1,041 participants.

Randomized Controlled TrialPediatric ResearchAsthma & Bronchial ResponsivenessRespiratory Health

Halotherapy as asthma treatment in children: A randomized, controlled, prospective pilot study

Ronen Bar-Yoseph, Nir Kugelman, Galit Livnat, Michal Gur, Fahed Hakim, Vered Nir, Lea Bentur

Pediatric pulmonology · 2017 · Israel

This double-blind pilot randomized 55 children with mild asthma to a salt room with or without an operating halogenerator over 14 sessions.

Randomized Controlled TrialAsthma & Bronchial ResponsivenessRespiratory Health

Salt chamber treatment is ineffective in treating eosinophilic inflammation in asthma

J Sandell, J Hedman, K Saarinen, T Haahtela

Allergy · 2013 · Finland

A double-blind trial assigned 39 adults with asthma to two salt concentrations or placebo, examining whether salt-chamber sessions suppress eosinophilic airway inflammation.

Respiratory Health6 entries

Clinical StudyRespiratory HealthAthletic Performance & Exercise

Efficacy of Halotherapy for Improvement of Pulmonary function Tests and Quality of Life of Non-Cystic Fibrosis Bronchiectatic Patients

Bita Rabbani, Seyed Shahabedin Mohammad Makki, Katayoon Najafizadeh, Hamid Reza Khodami Vishteh, Shadi Shafaghi, Shirin Karimi, Saeid Mahmoodian

Tanaffos · 2013 · Iran

A before-and-after clinical study assessed lung function, six-minute walking distance and quality of life after two months of salt-inhaler use in non-cystic-fibrosis bronchiectasis.

Clinical StudyRespiratory HealthCOPDBronchitisAsthma & Bronchial Responsiveness

The use of an artificial microclimate chamber in the treatment of patients with chronic obstructive lung diseases

R A Chernenkov, E A Chernenkova, G V Zhukov

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury · 1997 · Russia

A sanatorium rehabilitation report studied an artificial microclimate chamber in 29 people with chronic bronchitis or asthma.

Pilot StudyRespiratory HealthAsthma & Bronchial ResponsivenessBronchitisUpper Respiratory / Sinus ResearchRespiratory Infections

Surveys on therapeutic effects of "halotherapy chamber with artificial salt-mine environment" on patients with certain chronic allergenic respiratory pathologies and infectious-inflammatory pathologies

H Lazarescu, I Simionca, M Hoteteu, A Munteanu, I Rizea, A Iliuta, D Dumitrascu, E Dumitrescu

Journal of medicine and life · 2014 · Romania

A small exploratory comparison evaluated clinical and laboratory changes in 15 salt-chamber participants and four controls with mixed respiratory diagnoses.

Clinical StudyRespiratory HealthAsthma & Bronchial ResponsivenessBronchitisCOPD

Halotherapy for Treatment of Respiratory Diseases

Alina V. Chervinskaya, Nora A. Zilber

Journal of Aerosol Medicine · 1995 · Russia

An early clinical report compared 124 participants with mixed respiratory diagnoses receiving salt-room treatment with 15 controls.

Observational StudyRespiratory HealthAsthma & Bronchial ResponsivenessCOPD

SALTMED: The Therapy with Sodium Chloride Dry Aerosols

B. Opriţa, C. Pandrea, B. Dinu, B. Aignătoaie

Therapeutics, Pharmacology and Clinical Toxicology · 2010 · Romania

A retrospective emergency-department comparison examined dry sodium chloride delivered through a specialized system alongside standard care for obstructive respiratory disorders.

Pilot StudyRespiratory HealthSmokers / Respiratory ExposureGeneral Halotherapy Research

Halotherapy and Buteyko Breathing Technique – a Possible Successful Combination in Relieving Respiratory Symptoms

Radu Crișan-Dabija, Traian Mihăescu

Global Journal for Research Analysis · 2017 · Romania

An exploratory report measured a Buteyko-related breath-hold “control pause” before and after a brief halotherapy exposure in a small healthy-subject sample.

Asthma & Bronchial Responsiveness3 entries

Randomized Controlled TrialAsthma & Bronchial ResponsivenessRespiratory Health

The effect of salt chamber treatment on bronchial hyperresponsiveness in asthmatics

J Hedman, T Hugg, J Sandell, T Haahtela

Allergy · 2006 · Finland

Thirty-two adults with asthma were randomized to active salt-chamber or placebo sessions while continuing inhaled corticosteroids.

Scientific ReviewAsthma & Bronchial ResponsivenessRespiratory HealthScientific Reviews & BackgroundPediatric Research

Halotherapy-An Ancient Natural Ally in the Management of Asthma: A Comprehensive Review

Radu Crisan-Dabija, Ioan Gabriel Sandu, Iolanda Valentina Popa, Dragos-Viorel Scripcariu, Adrian Covic, Alexandru Burlacu

Healthcare (Basel, Switzerland) · 2021 · Romania

A comprehensive review examined 18 asthma-related articles, including diagnostic saline challenges, mucus-clearance investigations and therapeutic salt exposures.

Clinical StudyAsthma & Bronchial ResponsivenessRespiratory Health

Bronchial hyperreactivity to the inhalation of hypo- and hyperosmolar aerosols and its correction by halotherapy

P P Gorbenko, I V Adamova, T M Sinitsyna

Terapevticheskii arkhiv · 1996 · Russia

A small before-and-after study evaluated airway reactions to hypo- and hyperosmolar inhalation challenges in 18 people with asthma.

COPD2 entries

Preclinical / Animal StudyCOPDSmokers / Respiratory ExposureRespiratory HealthAnimal & Veterinary Research

Halotherapy relieves chronic obstructive pulmonary disease by alleviating NLRP3 inflammasome-mediated pyroptosis

Chenyan Zhang, Weijie Zhu, Qinghai Meng, Naqi Lian, Jingzhen Wu, Bowen Liu, Hao Wang, Xinyu Wang, Shujun Gu, Jingli Wen, Xiaoling Shen, Yu Li, Xu Qi

Annals of translational medicine · 2022 · China

Researchers studied lung function, oxidative stress and inflammatory signaling in a cigarette-smoke and lipopolysaccharide COPD model involving 120 rats.

Pilot StudyCOPDRespiratory HealthAthletic Performance & Exercise

Salt Halo Therapy and Saline Inhalation Administered to Patients with Chronic Obstructive Pulmonary Disease: A Pilot Study

Ulla Møller Weinreich, Tove Nilsson, Lone Mylund, Helle Thaarup Christiansen, Birgitte Schantz Laursen

Journal of Palliative Care & Medicine · 2014 · Denmark

A pilot compared salt-room sessions, isotonic saline inhalation and a control group, measuring COPD symptoms, walking distance, lung function and quality of life.

Bronchitis4 entries

Clinical StudyBronchitisRespiratory Health

The use of halotherapy for the rehabilitation of patients with acute bronchitis and a protracted and recurrent course

L V Borisenko, A V Chervinskaia, N G Stepanova, V S Luk'ian, V A Goncharova, I V Pokhodzeĭ, V Z Krivitskaia, L A Vishniakova, M A Pokhaznikova, M E Faustova

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury · 1995 · Russia

An older rehabilitation report examined clinical, lung-function, immune and microbiological measures in 25 people with prolonged or recurrent acute bronchitis.

Clinical StudyBronchitisRespiratory HealthAthletic Performance & Exercise

Halotherapy in the combined treatment of chronic bronchitis patients

E Z Maev, N V Vinogradov

Voenno-meditsinskii zhurnal · 1999 · Russia

This report investigated halotherapy within a combined sanatorium treatment program for chronic bronchitis.

Clinical StudyBronchitisRespiratory Health

Effectiveness of halotherapy of chronic bronchitis patients

L M Abdrakhmanova, U R Farkhutdinov, R R Farkhutdinov

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury · 2000 · Russia

A report in 49 people with persistent chronic bronchitis investigated free-radical oxidation and local immunity during halotherapy.

Clinical StudyBronchitisRespiratory Health

Effects of halotherapy on free radical oxidation in patients with chronic bronchitis

U R Farkhutdinov, L M Abdrakhmanova, R R Farkhutdinov

Klinicheskaia meditsina · 2000 · Russia

A separate publication examined blood-cell and serum chemoluminescence in 49 people with chronic bronchitis receiving combined treatment.

Pediatric Research1 entry

Clinical StudyPediatric ResearchRespiratory InfectionsRespiratory Health

The use of halotherapy for the health improvement in children at institutions of general education

M A Khan, A V Chervinskaia, N A Mikitchenko

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury · 2012 · Russia

This pediatric report examined specialized salt-room sessions in children frequently affected by acute respiratory illness.

Upper Respiratory / Sinus Research2 entries

Randomized Controlled TrialUpper Respiratory / Sinus ResearchPediatric ResearchRespiratory Health

Double-blind placebo-controlled randomized clinical trial on the efficacy of Aerosal in the treatment of sub-obstructive adenotonsillar hypertrophy and related diseases

Matteo Gelardi, Lucia Iannuzzi, Antonio Greco Miani, Simone Cazzaniga, Luigi Naldi, Concetta De Luca, Nicola Quaranta

International journal of pediatric otorhinolaryngology · 2013 · Italy

A double-blind placebo-controlled trial randomized 45 children with sub-obstructive adenotonsillar enlargement to ten Aerosal halotherapy or placebo sessions.

Clinical StudyUpper Respiratory / Sinus ResearchPediatric ResearchRespiratory Health

The role of non-medicamental technologies in the rehabilitation of the children presenting with acute rhinosinusitis

M A Khan, O V Khoruzhenko, E L Vakhova, N A Lyan, L I Radetskaya

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury · 2015 · Russia

A comparative rehabilitation study in 120 children with acute rhinosinusitis investigated halotherapy, magnetic therapy and their combination.

Cystic Fibrosis1 entry

Pilot StudyCystic FibrosisUpper Respiratory / Sinus ResearchRespiratory Health

Halotherapy in Patients with Cystic Fibrosis: A Pilot Study

Morhaf Al Achkar, David E. Geller, Amanshe Perera Slaney, Daniel T. Layish

International Journal of Respiratory and Pulmonary Medicine · 2015 · United States

An open-label before-and-after pilot assessed nine salt-room sessions over three weeks in twelve people with stable cystic fibrosis.

Dermatology & Skin2 entries

Scientific ReviewDermatology & SkinScientific Reviews & BackgroundGeneral Halotherapy Research

Prospects of Halotherapy in Sanatorium-and-Spa Dermatology and Cosmetology

Alina V. Chervinskaya

Resort Bulletin / Kurortnye Vedomosti · 2006 · Russia

A short narrative article discusses proposed skin effects and reported experiences in dermatological rehabilitation and cosmetology.

Scientific ReviewDermatology & SkinScientific Reviews & BackgroundRespiratory HealthGeneral Halotherapy Research

Effectiveness of the Salt Therapy – Current Knowledge Status

Paulina Oleksa, Piotr Więsyk, Karol Spozowski, Piotr Wójcik

Journal of Education, Health and Sport · 2022 / 2023 · Poland

A review searched three databases for publications on salt therapy, halotherapy and speleotherapy in respiratory and skin conditions.

Athletic Performance & Exercise1 entry

Clinical StudyAthletic Performance & ExerciseRespiratory Health

Impact Assessment of Saline Aerosols on Exercise Capacity of Athletes

Catalina Stirbu, Catalin Stirbu, Ion Sandu

Procedia – Social and Behavioral Sciences · 2012 · Romania

A conference-proceedings paper examined respiratory and effort-related measurements in athletes exposed to a saline aerosol environment during a recovery program.

Smokers / Respiratory Exposure2 entries

Clinical StudySmokers / Respiratory ExposureBronchitisRespiratory Health

Efficacy of therapeutic use of ultrasound and sinusoidal modulated currents combed with halotherapy in patient with occupational toxic-dust bronchitis

N A Roslaia, E I Likhacheva, P I Shchekoldin

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury · 2001 · Russia

A rehabilitation comparison in 88 industrial workers with occupational toxic-dust bronchitis used halotherapy alone or with ultrasound and sinusoidal modulated currents.

Placebo-Controlled TrialSmokers / Respiratory ExposureRespiratory Health

Effect of Dry Sodium Chloride Aerosol on the Respiratory Tract of Tobacco Smokers

Alina V. Chervinskaya

European Respiratory Journal · ERS Congress supplement · 2006 · Russia

A conference report compared twenty dry salt inhalations with placebo in 47 long-term male smokers without diagnosed chronic lung disease.

Respiratory Infections2 entries

Scientific ReviewRespiratory InfectionsRespiratory HealthScientific Reviews & Background

The Importance of Halotherapy in the Treatment of COVID-19 Related Diseases

Burhanettin Uysal, Ebrar Ulusinan

Journal of Clinical and Experimental Investigations · 2020 · Turkey

An early-pandemic literature-based discussion considered whether earlier respiratory salt-therapy work might justify research in COVID-19 rehabilitation.

Randomized Controlled TrialRespiratory InfectionsRespiratory HealthSmokers / Respiratory Exposure

Dry Sodium Chloride Aerosol Against Acute Respiratory Infections

Alina V. Chervinskaya

European Respiratory Journal · ERS Congress supplement · 2009 · Russia

A single-blind, placebo-controlled conference report describes 160 industrial employees receiving twice-weekly dry salt inhalations or plain air for twelve weeks.

General Halotherapy Research5 entries

Observational StudyGeneral Halotherapy ResearchDermatology & SkinRespiratory Health

Italian survey on the effectiveness of halotherapy administered via the Aerosal® system

Matteo Gelardi, Rossana Giancaspro, Francesca Fortunato, Michele Cassano

Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace · 2025 · Italy

An online survey across 80 Italian centers collected participants' perceptions after ten sessions using the Aerosal® system.

Scientific ReviewGeneral Halotherapy ResearchScientific Reviews & BackgroundRespiratory Health

The scientific validation and outlook for the practical use of halo-aerosol therapy

A V Chervinskaia

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury · 2000 · Russia

A methodological review outlines halo-aerosol therapy, distinguishing salt-room treatment from direct dry salt inhalation.

Observational StudyGeneral Halotherapy ResearchUpper Respiratory / Sinus ResearchScientific Reviews & Background

Salt caves as simulation of natural environment and significance of halotherapy

Joanna Zajac, Iwona Bojar, Jadwiga Helbin, Emilia Kolarzyk, Alfred Owoc

Annals of agricultural and environmental medicine : AAEM · 2014 · Poland

A questionnaire survey of 303 adults examined awareness, use and subjective impressions of artificial salt caves.

Scientific ReviewGeneral Halotherapy ResearchScientific Reviews & BackgroundRespiratory HealthPediatric ResearchDermatology & Skin

Halotherapy in Controlled Salt Chamber Microclimate for Recovering Medicine

Alina V. Chervinskaya

Balneologia Polska · 2007 · Russia

A technical and clinical review describes controlled chamber microclimates, aerosol generation and historical rehabilitation applications.

OtherGeneral Halotherapy ResearchScientific Reviews & BackgroundCystic FibrosisRespiratory Health

Halotherapy

Daniel T. Layish

Florida MD · Pulmonary and Sleep Disorders · 2015 · United States

A physician-authored educational magazine article introduces salt therapy and discusses clinical experience and questions for future research.

Scientific Reviews & Background8 entries

Scientific ReviewScientific Reviews & BackgroundRespiratory HealthGeneral Halotherapy Research

Halotherapy for Chronic Respiratory Disorders: From the Cave to the Clinical

Daniella Barber, Yury Malyshev, Fatai Oluyadi, Alexander Andreev, Sonu Sahni

Alternative therapies in health and medicine · 2022 · United States

A literature review assessed 13 manuscripts on salt-cave approaches, halotherapy and dry salt inhalers for chronic respiratory disorders.

Scientific ReviewScientific Reviews & BackgroundGeneral Halotherapy ResearchRespiratory HealthDermatology & Skin

Theoretical basis and clinical benefits of dry salt inhalation therapy

László Endre

Orvosi hetilap · 2015 · Hungary

This Hungarian-language review discusses the proposed physiology, protocols and clinical applications of dry salt inhalation.

Scientific ReviewScientific Reviews & BackgroundSmokers / Respiratory ExposureRespiratory HealthUpper Respiratory / Sinus Research

Salt Therapy as a Complementary Method for the Treatment of Respiratory Tract Diseases, With a Focus on Mold-Related Illness

Anita A Wasik, Tamara Tuuminen

Alternative therapies in health and medicine · 2021

A broad discussion considers salt therapy and proposed respiratory mechanisms, including questions about damp indoor environments and mold-related illness.

Scientific ReviewScientific Reviews & BackgroundGeneral Halotherapy ResearchRespiratory Health

Halotherapy: History and Experience of Clinical Application

A. V. Chervinskaya, A. N. Alexandrov, S. I. Konovalov

Folia Otorhinolaryngologiae et Pathologiae Respiratoriae · 1997 · Russia

A historical overview traces the development of cave-based approaches, salt aerosol delivery and early clinical applications.

Scientific ReviewScientific Reviews & BackgroundRespiratory HealthGeneral Halotherapy Research

Halotherapy of Respiratory Diseases

Alina V. Chervinskaya

Physiotherapy, Balneology and Rehabilitation · 2003 · Russia

A narrative and technical discussion examines salt aerosol delivery, proposed mechanisms and earlier respiratory rehabilitation reports.

Scientific ReviewScientific Reviews & BackgroundRespiratory HealthGeneral Halotherapy Research

Halotherapy – an Alternative Method for the Treatment of Respiratory Diseases

Evgeniya Vladeva

Heart–Lung (Varna) · 2015 · Bulgaria

A bilingual review discusses salt therapy, proposed respiratory mechanisms, indications, contraindications and combinations with other physical therapies.

Scientific ReviewScientific Reviews & BackgroundDermatology & SkinRespiratory HealthGeneral Halotherapy Research

Halotherapy – Benefits and Risks

Evgeniya Petrova Vladeva, Liliya Panajotova Ovcharova

Scripta Scientifica Salutis Publicae · 2018 · Bulgaria

A narrative review outlines halotherapy delivery methods, proposed effects, contraindications and possible reactions.

Scientific ReviewScientific Reviews & BackgroundRespiratory HealthGeneral Halotherapy Research

Halotherapy as Adjuvant Therapy for Respiratory Diseases: A Literature Review

Rhea Veda Nugraha, Daffa Muhammad Rhamdan, Ria Ardia Kartika Sari

KnE Life Sciences · Conference proceedings · 2024 · Indonesia

A conference-proceedings narrative review surveyed published respiratory halotherapy literature and proposed mechanisms.

Animal & Veterinary Research1 entry

Preclinical / Animal StudyAnimal & Veterinary ResearchRespiratory Health

Roles of hydration, sodium, and chloride in regulation of canine mucociliary transport system.

S. L. Winters, D. B. Yeates

Journal of Applied Physiology · 1997

Researchers examined canine airway-fluid regulation and mucociliary transport after depositing liquid water and salt-solution aerosols in a controlled laboratory setting. This was a physiological experiment, not a clinical trial of dry salt rooms for pet dogs.

View Research (opens in a new tab; PubMed — canine liquid-aerosol laboratory study)Source: PubMed — canine liquid-aerosol laboratory study

Videos & Educational Resources

Videos and practitioner or educational resources are not clinical studies. They are not peer-reviewed research.

Videos (4)

Educational & practitioner resources (4)

Educational resource · Not peer-reviewed

How Does Salt Therapy Improve Skin Health?

The Salt Suite · 2021

An existing practitioner resource discussing proposed skin mechanisms and common skin concerns. It is educational/provider material, not a controlled clinical study; its claims should be considered separately from independently published evidence.

Topics: Dermatology & Skin

Source status: Unavailable (The Salt Suite)

The original article could not be retrieved during source checks (access restricted). It has been preserved here rather than replaced by a different article.

Source Currently Unavailable
Educational resource · Not peer-reviewed

Salt Room Halotherapy: Your Natural Secret for Radiant Skin

Beauty Bar Med Spa · 2025

A wellness-provider guide discussing salt-room experiences and skin concerns such as eczema, psoriasis, acne, rosacea and sensitive skin. This is practitioner education and marketing, not independent clinical proof of its proposed mechanisms or benefits.

Topics: Dermatology & Skin

Source status: Verified (Beauty Bar Med Spa)

Educational resource · Not peer-reviewed

How Many Halotherapy Sessions Do You Really Need?

Salty Woods Salt Therapy & Spa · 2025

An existing practitioner guide discussing session frequency for different wellness goals and how providers organize repeated visits. Its suggested schedules and reported experiences are not clinically established protocols or guarantees of benefit.

Topics: General Halotherapy Research, Respiratory Health, Dermatology & Skin

Source status: Verified (Salty Woods Salt Therapy & Spa)

Educational resource · Not peer-reviewed

How Long Should You Stay in a Salt Room?

Salted Peace Salt Therapy · 2023

A practitioner guide to salt-room session duration and considerations for respiratory, skin and relaxation goals. Session lengths vary by equipment and protocol; this resource does not establish equivalent effects between a commercial salt room and a HaloTherapyPRO session.

Topics: General Halotherapy Research, Respiratory Health, Dermatology & Skin

Source status: Verified (Salted Peace Salt Therapy)

Understanding the Research

Scientific research is rarely defined by a single study.

The existing literature on halotherapy includes randomized controlled trials, controlled clinical studies, observational research, pilot studies, scientific reviews, animal research and older studies for which limited English-language information may be available.

Some studies report statistically significant findings, while others report limited or no significant effects. Sample sizes, treatment protocols, aerosol concentrations, particle sizes, exposure times and equipment differ considerably between studies.

Research involving one halotherapy protocol or piece of equipment should not automatically be assumed to apply to another.

HaloTherapyPRO believes visitors should have access to the research and be able to review both encouraging findings and the limitations of the existing evidence.

Important Information

The information on this page is provided for educational and informational purposes and summarizes independently published scientific literature.

The studies referenced on this page were not conducted using HaloTherapyPRO equipment unless expressly stated otherwise. HaloTherapyPRO does not claim that its products will reproduce the outcomes reported in these studies.

HaloTherapyPRO products are wellness products and are not intended to diagnose, treat, cure, mitigate or prevent any disease or medical condition.

Individuals with medical conditions should consult an appropriately qualified healthcare professional regarding questions about their health or medical treatment.