How to Clean an Infrared Sauna: Wood Care & Hygiene Tips

A dirty sauna can harbor bacteria, reduce its effectiveness, and even cause unpleasant odors.

Ignoring regular cleaning can lead to a less relaxing and potentially unhealthy experience.

But don’t worry, keeping your infrared sauna spotless is easier than you think. Follow these simple steps for a hygienic, long-lasting sauna.

• Prioritize Natural Cleaners: You should use gentle, non-toxic solutions like vinegar or baking soda to protect your sauna's wood.

• Regular Wiping is Key: You must wipe down interior surfaces after each use to prevent sweat and bacteria buildup.

• Ventilation Matters: You need to maintain proper airflow to prevent mold and odors.

• Disinfect High-Touch Areas: You should frequently clean handles and control panels to ensure hygiene.

• Choose the Right Tools: You should use microfiber cloths and appropriate brushes to avoid damaging the sauna's surfaces.

Microfiber cloths are better than regular cleaning cloths because they trap dirt and dust without the need for harsh chemicals.

The tiny fibers lift debris from surfaces, making them perfect for cleaning the wood inside an infrared sauna.

You can use them to wipe benches, walls, and even glass doors without worrying about scratches.

A high-GSM terry weave microfiber is especially effective for sauna cleaning, as its thick, looped fibers absorb moisture well and grab onto dust and debris effortlessly.

This is supported by a study that investigated 10 different microfiber cloths, finding that they significantly reduced microbial contamination on various surfaces, including those similar to sauna interiors.

The study, which tested against organisms like MRSA and E. coli, showed that reusable microfiber cloths effectively trap and remove bacteria, demonstrating their hygienic cleaning power.

Furthermore, the study noted that while the performance of all cloths decreased with repeated use, after washing, the reusable cloths improved, ultimately showing better performance than at first use, emphasizing their long-term effectiveness when properly maintained.

These clothes can also remove bacteria without chemicals by trapping microbes within their fibers.

They work both wet and dry, making them a versatile choice for keeping your sauna spotless.

To maintain their effectiveness, wash them in warm water without fabric softeners, which can reduce their absorbency.

When choosing microfiber cloths, opt for those with a high GSM rating for better durability and superior cleaning performance.

A natural wood cleaner is a safe, chemical-free solution that helps clean and maintain wooden surfaces.

Store-bought cleaners often contain harsh chemicals that can damage sauna wood, so using a natural alternative keeps your sauna in great condition.

The best ingredients for a homemade wood cleaner include white vinegar, lemon juice, and olive oil.

A simple DIY recipe is mixing one cup of water with one tablespoon of vinegar and a few drops of essential oil.

While essential oils add a fresh scent, some—like citrus, tea tree, or peppermint—can cause skin irritation or allergies, especially for those with sensitivities.

To be safe, apply the cleaner with a microfiber cloth, wiping gently in circular motions. Most natural wood cleaners are safe for different types of wood, but always test on a small area first.

A white vinegar and water solution is a simple yet effective way to clean and disinfect sauna surfaces.

Mixing equal parts white vinegar and water creates a natural cleaner that cuts through grime.

For light cleaning, a 1:3 ratio of vinegar to water works well. This solution is safe for most surfaces, but avoid using it on stone or unsealed wood.

You can enhance its cleaning power by adding a few drops of tea tree or lavender essential oil.

White vinegar naturally kills bacteria, making it a great non-toxic disinfectant for your infrared sauna.

Hydrogen peroxide spray is a powerful cleaner that eliminates germs and bacteria without harsh fumes. It works by breaking down organic matter, making it effective against mold, mildew, and stains.

As a household cleaner, hydrogen peroxide is almost as effective as bleach but much safer.

You can use it on wooden surfaces, glass, and even door handles in your sauna. To disinfect, spray and let it sit for five minutes before wiping.

Avoid mixing hydrogen peroxide with vinegar, as this creates a harmful reaction. Instead, use it separately for deep cleaning.

Baking soda is a natural cleaner that removes dirt, absorbs odors, and tackles stains. It works by breaking down grime without scratching surfaces.

Using baking soda instead of chemical cleaners reduces exposure to toxins. To eliminate odors, sprinkle baking soda on benches and let it sit before wiping.

When combined with vinegar, baking soda foams up, helping lift dirt from surfaces.

While baking soda doesn’t kill bacteria on its own, it enhances cleaning when used with other natural disinfectants. Keep a small container in your sauna for quick deodorizing after each use.

A handheld vacuum and a brush each have their advantages when cleaning a sauna.

Vacuums quickly remove dust and debris, while brushes work better for scrubbing tough spots.

If your sauna has fine dust, a vacuum is more efficient. However, for deep cleaning, a brush helps loosen grime without damaging surfaces.

For wooden benches and walls, a soft-bristle brush is ideal to prevent scratches, while a microfiber cloth works best for delicate areas and finishing touches.

When dealing with pet hair, a brush often lifts fur more effectively from fabric surfaces, while upholstery generally benefits from a vacuum.

Choosing the right tool depends on your sauna’s needs, but having both ensures a thorough and gentle cleaning routine.

Towels and absorbent mats both help clean up spills, but they serve different purposes.

Absorbent mats soak up more liquid, making them useful for heavy moisture areas.

However, towels are more versatile and easier to wash frequently. If you need something to protect sauna floors, an absorbent mat is ideal.

When wiping benches or walls, a towel works better. Microfiber towels, with their ultra-fine fibers and sponge-like structure, not only absorb water quickly but also trap more moisture than traditional cotton, making them especially effective for drying surfaces.

High-quality cotton or microfiber towels provide the best results for wiping down surfaces.

Using absorbent mats can also prevent stains by catching excess moisture before it soaks into the wood.

You should clean your infrared sauna after every use by wiping down the benches and walls to remove sweat and bacteria.

A quick wipe keeps it fresh and prevents buildup. If you use your sauna daily, a deeper clean once a week is important to maintain hygiene.

For less frequent use, a deep clean every two to four weeks works well. Heavy usage means more frequent cleaning, while occasional use requires less maintenance.

Deep cleaning, including scrubbing the wood and checking for mold, should be done monthly.

A regular routine keeps your sauna in top condition, ensuring a safe and enjoyable experience.

Before cleaning your infrared sauna, gather the right supplies. You’ll need a soft microfiber cloth, warm water, and a mild natural cleaner like vinegar or baking soda.

Avoid harsh chemicals that can damage the wood. Natural cleaning solutions are safer and help maintain the sauna’s finish.

A microfiber cloth is ideal because it traps dust without scratching surfaces. Before starting, make sure all supplies are within reach so you can clean efficiently without stopping.

Always unplug your sauna before cleaning to prevent electrical hazards. It takes about 30–60 minutes for the sauna to cool down completely.

Never clean it while it’s hot, as heat can cause cleaning solutions to evaporate too quickly, making them less effective.

Keeping the door open helps cool it faster. Unplugging the unit doesn’t speed up cooling, but it ensures safety while cleaning.

Wipe down the wooden surfaces with a damp cloth after every few uses to prevent sweat buildup and keep your sauna fresh.

Use warm water, as cold water may not remove grime as effectively. Microfiber cloths work best since they clean without leaving streaks.

Be careful not to oversaturate the wood, as too much moisture can cause it to swell and lead to long-term damage when it dries.

Gently wipe the glass and metal parts as well, then always dry the wood immediately to prevent moisture from soaking in.

Regular wiping also helps prevent mold growth and maintains a clean, comfortable space.

If your sauna has rocks, clean them occasionally to remove dust and mineral buildup.

Dust off the heater with a dry cloth or a soft brush. Avoid using water on the heater, as it may cause damage.

If the rocks appear dirty, rinse them under running water and let them dry before placing them back.

Always turn off the sauna before cleaning the heater to avoid burns or electrical issues.

Certain parts of your sauna, like door handles, benches, and the control panel, need frequent disinfection.

Wipe these areas with a mild disinfectant after each session to prevent germs from spreading.

Avoid harsh cleaners that could damage the surfaces. Use a damp cloth for the control panel, making sure not to soak it. Regularly sanitizing these areas keeps your sauna hygienic and safe to use.

Good ventilation prevents musty odors and bacteria buildup in your sauna. Air it out after each session by leaving the door open for a while, and keep vents clean to prevent dust from blocking airflow.

For even better circulation, a small 1–2-inch gap under the door helps fresh air flow in, while placing exhaust vents near both the ceiling and floor ensures warm air moves properly.

Without good airflow, odors and bacteria can linger, making your sauna feel stuffy. A well-ventilated sauna stays fresh, inviting, and ready for your next relaxing session.

Cleaning your infrared sauna regularly prevents dirt and bacteria buildup. Wipe it down after each use and do a deep clean once a week.

A good routine includes dusting, disinfecting high-touch areas, and checking for moisture buildup.

Having a structured cleaning checklist makes this process easier by keeping tasks organized and ensuring nothing is overlooked.

It helps maintain consistency, so your sauna stays hygienic and in top condition. Using safe, non-toxic cleaners preserves the wood and extends the sauna’s lifespan.

After cleaning, make sure the sauna is completely dry before closing the door to prevent mold growth.

Store-bought sauna cleaners are convenient, but some contain harsh chemicals that may not be ideal for infrared saunas.

While "green" cleaners seem safer, always check the ingredients to avoid residues that could affect the sauna’s air quality.

DIY cleaners, like vinegar and water, work well for regular cleaning and cost much less. However, they may not be as effective against stubborn stains.

Making your own cleaner takes extra effort, but it gives you full control over the ingredients.

If convenience matters more, store-bought options save time. The choice depends on whether you prefer affordability and safety or quick and easy cleaning.

The type of wood inside your sauna plays a big role in durability and maintenance.

Cedar, hemlock, and basswood are some of the best choices because they resist moisture and withstand high temperatures.

Softwoods like cedar are naturally antimicrobial, while hardwoods such as basswood provide a smooth, splinter-free surface.

Avoid woods like pine, which can warp or crack over time. Sauna wood should never be treated with toxic finishes, as high heat can release harmful fumes.

Regular upkeep and proper ventilation will help prevent rotting and extend the life of your sauna.

Cleaning your sauna regularly keeps it fresh and hygienic. Wipe down benches and walls after each session to remove sweat and prevent stains.

For deep cleaning, use a mixture of warm water and mild soap, avoiding harsh chemicals that can damage the wood.

To prevent mold and mildew, ensure the sauna is well-ventilated and dries completely after use.

Baking soda or vinegar can help lift stubborn stains without harming the surface. If needed, lightly sand worn-out areas to restore smoothness.

Protective coatings are generally unnecessary, as untreated wood absorbs heat better and remains more breathable.

Moisture is the biggest threat to sauna wood, making proper ventilation essential. After each session, leave the door open to air out the space, allowing excess humidity to escape.

Mold often starts in hidden corners, so inspect the sauna regularly for dark spots or musty odors.

Natural solutions like tea tree oil or vinegar can help disinfect without damaging the wood.

If mold does appear, use a diluted hydrogen peroxide solution to remove it, then ensure the sauna dries fully before the next use.

Over time, heat can cause wood to dry out or crack. To protect the wood, avoid placing it directly in the path of infrared light for long periods.

Regularly check for signs of wear and treat areas showing signs of stress. A light sanding can smooth out rough spots, but don’t overdo it, as sanding too much will affect the wood’s natural texture and finish.

While most saunas don’t require treatments, some owners use oils or wood conditioners to protect the wood and enhance its appearance.

It’s important to choose a product designed for sauna environments—one that won’t become sticky, trap moisture, or release harmful substances when heated. 

Paraffin oil is a great option because it’s colorless, fragrance-free, and helps protect the wood from dirt and humidity without altering its natural feel.

Applying it once or twice a year on freshly cleaned surfaces keeps the benches in good condition and extends their lifespan.

Sweat, moisture, and natural oils from the skin can cause discoloration over time. To remove sweat stains, scrub the affected areas with a mixture of baking soda and water.

Mold-related discoloration may require a stronger solution, such as diluted hydrogen peroxide.

Water stains can be prevented by thoroughly drying the wood after each session. If the wood starts to look dull, a light sanding can refresh its appearance.

Regular maintenance and proper ventilation will help prevent deep stains, keeping your sauna’s interior looking clean and inviting.

Consistent care is the key to extending the life of your sauna. Clean the wood weekly with a damp cloth to remove buildup, and inspect for signs of mold or moisture damage.

Airing out the sauna after each use prevents humidity from lingering. If the wood appears dry, occasional oiling can restore its natural moisture.

Checking for loose boards or worn-down surfaces ensures minor issues don’t become bigger problems.

With regular upkeep, proper cleaning, and good ventilation, your sauna will remain a relaxing retreat for years to come.

How often should you clean your sauna? A quick wipe-down after each session prevents sweat buildup, but deeper cleaning depends on use.

Portable saunas, exposed to fabric surfaces, need cleaning at least once a week, while built-in saunas should be deep cleaned monthly.

If multiple people use the sauna, increase the frequency. Humidity, ventilation, and personal hygiene also impact cleaning needs.

Regular maintenance ensures a pleasant and sanitary experience, preventing bacteria and mold from thriving in warm, moist environments.

The right cleaning materials protect your sauna’s surfaces and ensure longevity. For portable saunas, mild soaps, white vinegar, and microfiber cloths work well without damaging fabric or electrical components.

Built-in saunas, often made from cedar or hemlock, require gentle, non-abrasive cleaners to preserve the wood’s integrity.

Avoid harsh chemicals like bleach or ammonia, as they can degrade materials over time.

Natural cleaning agents such as diluted vinegar or baking soda solutions are effective for both types, keeping your sauna fresh while minimizing exposure to harmful toxins.

The best cleaning supplies for saunas are simple yet effective. Microfiber cloths, soft brushes, and gentle disinfectants work well.

Infrared saunas don’t require specialized cleaners, but they do need non-toxic products that won’t interfere with heat absorption.

For wooden surfaces, mild soapy water or diluted vinegar works best. Fabric-lined portable saunas should be wiped down with a damp cloth and dried thoroughly.

Outdoor saunas may need extra attention due to exposure to the elements. Home and commercial saunas often share the same cleaning principles, but high-traffic use demands stronger disinfectants.

Sweat accumulation varies between sauna types. Built-in models absorb sweat into the wood, requiring routine cleaning to prevent stains, while portable saunas trap moisture on their fabric walls.

Proper moisture management is essential to avoid mold. Built-in saunas rely on natural ventilation, whereas portable models may need additional drying steps.

Leaving a sauna open after use, wiping excess moisture, and using absorbent towels can help manage sweat buildup.

Poor moisture control can lead to bacteria and mildew, so always ensure thorough drying between sessions.

Ventilation plays a significant role in odor and mold control. Portable saunas may require extra airflow since fabric traps moisture, while built-in saunas naturally ventilate through wooden walls.

Regular drying and occasional vinegar cleaning can help neutralize odors. Mold prevention involves keeping humidity levels low, cleaning surfaces frequently, and ensuring proper airflow.

A dehumidifier can be a useful addition, especially in humid climates. Baking soda is an effective, natural odor absorber, while essential oils can provide a fresh scent without harmful chemicals

Deep cleaning keeps your sauna in top shape. For a portable sauna, focus on washing fabric liners, wiping down support frames, and disinfecting seating areas.

Built-in saunas need wood-safe cleaning solutions and scrubbing to remove grime. The difference between regular and deep cleaning lies in intensity—while daily maintenance prevents buildup, deep cleaning eliminates hidden bacteria.

Avoid strong chemicals that can damage sauna materials. Instead, opt for natural disinfectants that keep the environment safe and toxin-free. Consistent care reduces the risk of mold and prolongs the sauna’s lifespan.

Cleaning a portable sauna is often quicker due to its compact size, but its fabric and structure require careful drying.

Built-in saunas, though larger, may be easier to maintain as wood resists bacteria when kept dry.

Size impacts ease—larger saunas require more effort, but proper organization makes the process manageable.

Portable saunas may not demand frequent deep cleaning but do need regular moisture control.

Challenges in cleaning built-in saunas include reaching corners and preserving wood quality, making proactive maintenance essential to prevent mold buildup.

Proper storage keeps a portable sauna in good condition. Folding and storing it in a dry area prevents moisture buildup, while breathable covers protect against dust.

Avoid garages or basements if they are humid, as trapped moisture can lead to mold.

Built-in saunas require ongoing maintenance rather than storage, with ventilation being key. Long-term storage demands periodic airing to prevent mildew.

Investing in moisture absorbers or silica gel packs can help maintain freshness. Proper care ensures that your sauna remains ready for use whenever needed.

When cleaning a sauna after someone has been sick, disinfecting all surfaces is essential.

Start with the sauna benches, which can harbor germs. A mild, non-toxic disinfectant is best to clean the benches without damaging the wood.

For sauna walls and floors, a damp cloth and a gentle cleaner can do the job—avoid harsh chemicals that may damage the wood finish.

It’s a good idea to disinfect sauna rocks as well, especially if they were exposed to sweat and germs.

Alcohol-based disinfectants are fine, but be careful not to use them on delicate materials.

High heat can’t replace disinfectants, as it only kills surface germs, not those hidden in cracks or on fabrics.

Heating the sauna to a high temperature helps eliminate germs, but it’s just part of the sanitization process.

For the most effective cleaning, the sauna should reach around 150°F (65°C) or higher.

Leave it at this temperature for about 30 minutes to kill any lingering bacteria or viruses.

Afterward, ventilate the sauna well. Open the door or windows to allow fresh air to circulate.

Proper ventilation can help remove airborne pathogens and keep the air clean. If someone has been sick, ventilating the sauna for at least 30 minutes is a good idea, ensuring any germs are gone.

Sauna stones can collect bacteria, so it's important to clean them if someone has been sick.

First, remove the stones carefully and wipe them down with a damp cloth. If they are heavily soiled, a mild disinfectant can be used, but avoid harsh chemicals that may damage the stones.

When cleaning the sauna heater, use a non-abrasive cloth and avoid soaking it in any cleaning solutions.

Steam alone can’t kill all germs, but it can help with sanitization. If you’re considering using steam cleaning machines, take extra care, as high moisture could damage your sauna’s electrical components.

Always follow safety guidelines when using bleach—never apply it directly to sensitive areas.

Sauna towels should be replaced regularly, especially after someone has been ill. If a towel has been used during an illness, it’s best to wash it thoroughly before reuse.

To disinfect sauna towels effectively, wash them in hot water with a good detergent. You can also add a bit of vinegar to the wash to help kill bacteria.

For sauna accessories like headrests and mats, sanitize them after each use. Wipe down with a disinfecting wipe or use a cloth soaked in a disinfectant solution.

Keeping your accessories clean ensures that germs aren’t passed between sauna users.

You might think that more cleaning product means a cleaner sauna, but using too much can actually cause problems.

When you oversaturate surfaces, it can lead to sticky residue, which is not only unattractive but also difficult to remove.

Excess chemicals can also leave behind strong odors that linger, making your sauna less enjoyable.

To avoid this, simply use the recommended amount of cleaner. Stick to the instructions, and if you’re unsure, use a little less to start with. This way, your sauna will stay clean without risking damage to the surfaces.

High-touch surfaces like the sauna door handle, seating areas, and control panels can easily pick up germs and dirt.

Cleaning these areas regularly helps prevent the buildup of bacteria and keeps your sauna hygienic.

Neglecting these surfaces could lead to the spread of germs, especially if multiple people use the sauna.

Be sure to wipe them down after each use, using a gentle cleaner that won’t damage the wood or other materials.

By focusing on these key areas, you’ll create a healthier environment and reduce the risk of any unwanted illnesses.

Cleaning tools can collect dirt, germs, and chemicals over time, making them less effective.

If you don’t replace them regularly, you risk spreading contaminants rather than removing them.

Old cleaning tools can also damage your sauna surfaces or leave streaks. Pay attention to signs like fraying mop heads or worn-out scrub brushes.

Replacing tools when needed ensures that your sauna gets a thorough clean and helps maintain its condition.

Fresh cleaning tools work better, and they’ll save you time by improving the overall effectiveness of your efforts.

Proper ventilation is key when cleaning your sauna. Without good airflow, cleaning products and moisture can get trapped, which may lead to unpleasant odors or even mold growth.

Poor ventilation can also make it harder for cleaning products to work effectively. Keep windows open or use the sauna’s ventilation system while cleaning to ensure the air circulates properly.

This reduces the risk of mold and ensures that your sauna remains fresh and dry after each cleaning session.

Mixing cleaning chemicals can create dangerous reactions. For example, combining bleach with ammonia or vinegar can produce harmful fumes that can be toxic.

Even something as simple as mixing bleach with dish soap can lead to harmful gas release.

Always use one cleaner at a time and follow product instructions closely. If you’re unsure about a combination, avoid it altogether.

Using the wrong mix not only makes cleaning dangerous, but it also compromises the safety of your sauna and your health.

Cleaning in a hurry often leads to missed spots and a less effective clean. Rushing can also cause damage, like scratching delicate surfaces or using too much water.

When you rush, you may overlook areas that need extra attention, leading to more work later on.

Take your time to do a thorough job, focusing on every corner and surface. This way, you avoid mistakes and keep your sauna in top condition.

The extra time you spend will pay off by ensuring a long-lasting and pristine sauna experience.

Not all sauna surfaces are the same, and using the wrong cleaning method can cause lasting damage.

For example, abrasive scrubbers can scratch delicate wood, while using too much water on carpets or fabric could lead to mildew.

You should also avoid using hot water on certain materials, like wood, as it can cause warping or discoloration.

Always use a cleaning method suited to the specific surface you're cleaning. When in doubt, check the manufacturer's guidelines to ensure you’re taking the best approach.