Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
1～30 item / All 41 items
Manufacturing and selling bio-toilets utilizing a microbial decomposition system!
The "Beat" using biochips is a toilet that decomposes and eliminates waste without the need for pumping.
It's okay to transport it in a light truck! A revolutionary vehicle-mounted toilet.
This is a groundbreaking portable toilet that can be transported by light truck while complying with the Road Traffic Act (height and weight) and local regulations (sewage transport). Typically, toilets from other manufacturers that require pumping have their tanks filled, and to move the toilet vehicle, a sewage transport permit is required according to municipal regulations. Our bio-toilet processes sewage through decomposition, allowing for transport without violating regulations. *1. Please use it in accordance with the specified number of uses. *2. The microorganisms will decompose waste within 24 hours. Please ensure sufficient processing time before transport.
Compliant with the Ministry of Land, Infrastructure, Transport and Tourism's "Comfortable Toilet" standards. No need for pumping and odor is suppressed. Women can use it with peace of mind. *Certified product by the NPO Japan Toilet Association "Comfortable Toilet".
The "Comfortable Bio Toilet B-eat" is an eco-friendly toilet that uses microorganisms to break down waste into water and carbon dioxide, eliminating the need for pumping and water usage. With its unique computer control, it prevents the generation of odors. It complies with the standards set by the Ministry of Land, Infrastructure, Transport and Tourism for "comfortable toilets," ensuring cleanliness and comfort, making it safe for women to use. 【Features】 ■ Lighting activated by a motion sensor ■ Equipped with a mirror, washbasin, changing area, small item storage, and sanitary box ■ Comfortable and spacious environment ■ Used chips can be recycled as fertilizer ■ NETIS registered / Certified product by the NPO Japan Toilet Association as a "comfortable toilet" *For more details, please refer to the materials. Feel free to contact us with any inquiries.
This is a bio toilet eligible for long-term care insurance!
The "KBT-05" is a bio-toilet designed as a chair-type furniture that allows for use without a caregiver. The design resembles a piece of furniture, eliminating the unpleasant odors typically associated with indoor use, and since it does not use water, there are no issues during water outages. When the cushion is lifted, it transforms into a bio-toilet, with toilet paper on the right and an operation switch on the left. The toilet seat uses a soft seat. 【Features】 ■ Applicable for long-term care insurance ■ Bio-toilet for caregiving ■ Chair-type ■ Does not use water *For more details, please refer to the catalog or feel free to contact us.
Best-selling product: a non-electric bio toilet!
The "TS-25" is a non-powered type of bio-toilet that can be used in places without a 100V power supply. It is a hand-cranked bio-toilet characterized by its small processing capacity. Additionally, we offer other products tailored to various uses, such as bicycle-pedaled types. [Features] ■ Non-powered type ■ Small processing capacity *For more details, please refer to the catalog or feel free to contact us.
No need for pumping! No need for cleaning water! No need for substrate replacement! Easy installation without plumbing work. Ideal for temporary toilets, parks, mountain cabins, and vehicles.
The bio toilet "Violet" adopts an excellent performance acid compost decomposition method (patented) that efficiently decomposes and reduces human waste. It cultivates decomposition microorganisms within the substrate, activates their functions, and processes the waste in a short time. This bio toilet generates little ammonia (the cause of odor) and nitrous oxide (a greenhouse gas), making it environmentally friendly. 【Lineup】 ○BT-S →Up to 20 uses per day (250cc/use) ○BT-L →Up to 40 uses per day (250cc/use) For more details, please download the catalog or contact us.
No need for pumping! No need for cleaning water! No need for substrate replacement! For temporary toilets, parks, mountain huts, and vehicles.
○Cumulative sales of over 500 units in the series The "Violet BT-L type" is an easy and convenient bio-toilet. It can be used simply by connecting it to a power outlet. Developed in collaboration with Tohoku University, the acid-rotting composting method (patented) efficiently decomposes waste in a short time. 【Features of the Acid-Rotting Composting Method】 1. The decomposition power of microorganisms lasts for a long time. 2. It minimizes the generation of ammonia (the cause of odor), resulting in less smell. 【Product Specifications BT-L Type】 Processing capacity: Up to 40 times per day (250cc per time) Body dimensions: Standard toilet seat type Width 660 × Depth 800 × Height 670mm Heated toilet seat type Width 660 × Depth 800 × Height 710mm Body weight: Approximately 85kg Power supply: AC100V 50/60Hz Power consumption: Standard toilet seat type 975W, Heated toilet seat type 1,025W Deodorizing device: Sold separately For more details, please download the catalog or contact us.
![Bio Toilet Violet [Solar Model]](https://image.mono.ipros.com/public/product/image/847/2000154052/IPROS656947998372400985.JPG?w=280&h=280)
A bio-toilet that operates independently with solar power. Ideal for mountain cabins, nature parks, and during disasters.
This is a solar model of the bio-toilet "Violet," which combines solar panels and a solar thermal water heat exchanger. All the necessary electricity and heat are supplied by solar energy, making it usable in locations without access to electricity. It is ideal for the following places and uses: - Toilets at mountain lodges and rest areas in the mountains - Toilets in riverbanks and riverside parks - Locations like natural parks and national parks where electrical work and septic tank installation are difficult - Toilets for disaster situations that can be used even during power outages, emergency toilets
![[Trivia Information] Bio Clean News May 2018 Issue](https://image.mono.ipros.com/public/product/image/127/2000462199/IPROS58851531603099939001.png?w=280&h=280)
Our bio-toilets are being used in various fields. Here are some examples!
Recently, our bio toilet "Violet" has started to be used in various places beyond construction sites. In this document, we introduce several examples of "even in such places." Please take a moment to read it. 【Examples】 ■ Fukushima Daiichi Nuclear Power Plant Workers' Rest Area ■ Natural Park (Highland Ranch) Toilet Building ■ Highway Maintenance Vehicles ■ Mountain Lodge ■ Fishing Pier at a Lake *For more details, please refer to the PDF document or feel free to contact us.
We are introducing the standard specifications of comfortable toilets and the types of toilets.
In the "Comfortable Toilet Case Study Collection ver.1," we introduce numerous examples of comfortable toilets, including house-type, vehicle-mounted, and box-type cases. This book provides a clear understanding of the standard specifications for comfortable toilets. This material is an excerpt from the case study collection produced by the Ministry of Land, Infrastructure, Transport and Tourism, featuring the section on our "Biomikaret 30-I type." [Contents (partial)] ■ Standard specifications for "Comfortable Toilets" ■ Types of toilets ■ Case studies of "Comfortable Toilets" across the country ■ Individual case studies of comfortable toilets, etc. * For more details, please refer to the PDF document or feel free to contact us. * This case study collection is an excerpt version. Please contact us if you need the full version.
A wealth of tips on how to choose a reliable bio toilet! Information useful before and after installation explained in a Q&A format!
A bio-toilet used as a "comfortable toilet" in direct control projects by the Ministry of Land, Infrastructure, Transport and Tourism. It activates microorganisms using the power of nature to break down human waste. Currently, our company, which specializes in bio-toilets, is offering a booklet titled "Q&A You Should Know When Selecting a Bio-Toilet" as a gift! In particular, we have compiled content that we would like those who have previously experienced failures with bio-toilets to read. For example: "I ended up spending too much due to overlapping sawdust exchanges." "I never want to use a bio-toilet again because it smelled worse than a pit toilet!" We summarize the key points for choosing a bio-toilet without making mistakes and present them in a Q&A format. 【Examples of Q&A included】 ■ What is a bio-toilet? ■ What should I be careful about when choosing a bio-toilet? ■ Frequently asked questions about "Bio-Mikaret." ■ What are the differences between "Bio-Mikaret" and other companies' bio-toilets? *For more details about the products, please download the PDF materials or contact us.
Installed in many long-term sites where it is difficult to pump out sewage due to the inability to lay sewage pipes, with no worries about freezing even in winter.
"Bio-Mikaret" is a temporary bio-toilet that can powerfully decompose waste by activating microorganisms with an internal heater. This time, we would like to introduce a case where it was adopted at a long-term site in Fukushima Prefecture! At this site, there is no sewage system, making it difficult to empty the toilets in the long term. One of the four units was installed as a women's toilet, and last year, due to low temperatures, there were many incidents of water pipes bursting, rendering the toilets unusable. Therefore, for the first time, we adopted Bio-Mikaret. As a result, we were very pleased to report that there were no troubles during the winter. [Effects of Implementation] ■ No worries about freezing even in winter ■ Improvement in troubles related to toilets becoming unusable ■ Helped with freeze prevention measures such as water pipes bursting due to low temperatures *For more details about the product, please download the PDF or contact us.
![[Construction Achievements] Bio-toilet adopted at the 7th Station of Mount Fuji in Fujiyoshida City.](https://image.mono.ipros.com/public/product/image/8f3/2000556356/IPROS02136647794295739477.jpeg?w=280&h=280)
Installed on the Yoshida Route descent! This is an eco-friendly bio toilet that uses a bio-microorganism treatment system for circulation and recycling, neither a flush toilet nor a pit toilet.
The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Microbial treatment of urine, toilet paper, etc. ■ Harmful bacteria (such as E. coli) are killed by the fermentation heat of organic matter and heater heat, allowing safe compost to be returned to the earth ■ Energy-saving with PTC surface heating element heater (far infrared method) Installation location: 7th station of Mount Fuji, Fujiyoshida City, Yamanashi Prefecture Model: Bio R21-L type, 7 units Options: Weight sensor system, urine separation system, separate toilet Comment Installed at the 7th station of Mount Fuji along the Yoshida route. It features urine separation, and with four 600L urine tanks installed, it can accommodate many climbers. Elevation: 2,640 m *For more details about the product, please download the PDF or feel free to contact us.
![[Construction Achievements] Bio-toilet adopted at the Nikenchaya Ventilation Station on the Hanshin Expressway.](https://image.mono.ipros.com/public/product/image/ccc/2000556357/IPROS84757426705931669527.jpeg?w=280&h=280)
This is an eco-friendly bio-toilet that uses a circulation and recycling system through bio-microbial treatment, neither flushing nor pit latrine.
The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. Since the toilet odor is completely eliminated, it can be used comfortably and odor-free. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat generated from the fermentation of organic matter and heater heat, allowing it to be safely returned to the earth as compost ■ Energy-efficient with PTC surface heating element (far-infrared method) Installation location: Hanshin Expressway Nikenchaya Ventilation Station Model: Bio R21-L type, 1 unit *For more details about the product, please download the PDF or feel free to contact us.
![[Construction Results] Bio-toilet adopted at Yumoto Substation in Hakone Town, Kanagawa Prefecture.](https://image.mono.ipros.com/public/product/image/8ed/2000556358/IPROS56202720203858558119.jpeg?w=280&h=280)
This is an eco-friendly bio toilet that uses a circulation and recycling system based on bio-microbial treatment, neither water-flushed nor pit latrine.
The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. Since the toilet odor is completely eliminated, it can be used comfortably and without smell. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the fermentation heat of organic matter and heater heat, allowing it to be safely returned to the earth as compost ■ Energy-saving with PTC surface heating element heater (far-infrared method) Installation location: Yumoto Substation Model: Bio R21-M type, 1 unit Option: Separate toilet Comment: Installed within the Yumoto Substation facility. It is a toilet equipped with a washlet. The Hakone Tozan Railway runs nearby. *For more details about the product, please download the PDF or feel free to contact us.
![[Construction Achievements] Bio-toilet adopted in the tunnel of the Graduate University for Advanced Studies.](https://image.mono.ipros.com/public/product/image/734/2000556361/IPROS67732826393958243460.jpeg?w=280&h=280)
This is an eco-friendly bio-toilet that uses a circulation and recycling system with bio-microbial treatment, neither flushing nor pit latrine.
The "Bio R21" is a recycling-type toilet that utilizes bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria prevents bad odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat generated from the fermentation of organic matter and heater heat, allowing it to be safely returned to the earth as compost ■ Energy-efficient with a PTC surface heating element (far infrared method) Installation location: Onna Village, Kunigami District, Okinawa Prefecture, inside the Graduate University for Advanced Studies tunnel Model: Bio R21-L type, 1 unit Options: Weight sensor system Comment: This university is an international research and educational institution aiming for the highest standards in natural sciences. *For more details about the product, please download the PDF or feel free to contact us.
![[Construction Achievements] Bio-toilet adopted at Kuzuryu Dam evacuation shelter](https://image.mono.ipros.com/public/product/image/c8c/2000556362/IPROS13378116713547165180.jpeg?w=280&h=280)
This is an eco-friendly bio-toilet that uses a circulation and recycling system with bio-microbial treatment, neither water-flushed nor pit latrine.
The "Bio R21" is a circulation and recycling type toilet that uses bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a comfortable and odorless experience. 【Features】 ■ The bedding material is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Human waste and toilet paper are treated with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the fermentation heat of organic matter and heater heat, allowing for safe composting back into the earth ■ Energy-saving with PTC surface heating element heater (far infrared method) Installation location: Kuzuryu Dam emergency shelter Model: Bio R21-M type 1 unit Options: Hybrid power generation Comment: Elevation 1,200 m *For more details about the product, please download the PDF or feel free to contact us.
![[Construction Achievements] Bio-toilet adopted at Ishizuchi Shrine in Saijo City, Ehime Prefecture.](https://image.mono.ipros.com/public/product/image/753/2000556366/IPROS71151580232080061210.jpeg?w=280&h=280)
This is an eco-friendly bio-toilet that uses a circulation and recycling system with bio-microbial treatment, neither flushing nor pit latrine.
The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. The odor from the toilet is completely eliminated, allowing for a scent-free and comfortable experience. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates odors (patented) ■ Treats human waste and toilet paper with microorganisms ■ Harmful bacteria (such as E. coli) are killed by the heat from organic matter fermentation and heater heat, allowing for safe composting back into the earth ■ Energy-saving with PTC surface heating element (far infrared method) Installation location: Ishizuchi Shrine, Saijo City, Ehime Prefecture Model: Bio R21-L type, 1 unit Comment: Installed at the small hut at the base of the third chain, famous for being a place where chains are tested on the way to the summit shrine of Ishizuchi Shrine. Elevation: 1,900 m *For more product details, please download the PDF or feel free to contact us.
![[Construction Achievements] Bio-toilet adopted at the Higashitonden River Park Golf Course in Sapporo City.](https://image.mono.ipros.com/public/product/image/09e/2000556367/IPROS62548523541311091753.jpeg?w=280&h=280)
This is an eco-friendly bio toilet that uses a circulation and recycling system with bio-microbial treatment, neither water-flushed nor pit latrine.
The "Bio R21" is a circulation and recycling type toilet that utilizes bio-microbial treatment. Since the toilet odor is completely eliminated, it can be used comfortably and odorlessly. 【Features】 ■ The substrate is made from buckwheat husks ■ Initial introduction of aerobic bacteria eliminates bad odors (patented) ■ Microbial treatment of urine, toilet paper, etc. ■ Harmful bacteria (such as E. coli) are killed by the fermentation heat of organic matter and heater heat, allowing it to be returned to the earth as safe compost ■ Energy-saving with PTC surface heating element heater (far infrared method) Installation location: Higashitonodagawa Park Golf Course, Sapporo City, Hokkaido Model: Bio R21-L type single unit Options: Weight sensor system, urine separation system, 300L urine tank Comment: Installed in the parking lot of the park golf course. There are female-only and multipurpose (also for men) options. *For more details about the product, please download the PDF or feel free to contact us.
Processing is possible according to the number of portable toilets. No need for additional bio or pumping!
Our company offers the environmentally friendly bio-toilet "Integrated Toilet." The overflow system naturally conveys sludge to the first to third treatment tanks, eliminating the need for unnecessary pumps. Additionally, the third treated water is processed to a state close to rainwater (gray water), making it reusable. Please feel free to contact us if you have any inquiries. 【Features】 ■ No need for additional bio materials unless using antibacterial substances, etc. ■ No need for regular pumping ■ Odors can be collected and treated through bio-processing and odor neutralization devices ■ Urine can be used as reusable water (gray water) ■ Made mostly of SUS, offering excellent durability *For more details, please download the PDF or feel free to contact us.
![Outdoor Toilet Unit [Materan Toilet] Bio Toilet](https://image.mono.ipros.com/public/product/image/6fe/2000450631/IPROS22363097234766245721.jpeg?w=280&h=280)
No electricity, water supply, or drainage. Collaboration with a bio-toilet.
A product that combines the robustness unique to Materan toilets with the feature of not requiring a lifeline for bio toilets. It has a proven track record mainly in mountainous areas.
No water needed, no need for pumping! Eco-friendly bio toilet!
"W-18" is a dry toilet waste treatment device that does not require pumping. It is made entirely of stainless steel and does not use water. Additionally, it has a large processing capacity and is an easy-to-install, freestanding bio-toilet. It comes standard with a heated toilet seat and handrails, making it possible to transport in cars or boats. We also offer a lineup tailored to various applications. 【Features】 ■ Freestanding type ■ Made entirely of stainless steel ■ No pumping required ■ Heated toilet seat and handrails are standard features *For more details, please refer to the catalog or feel free to contact us.
Best hit product series! We also have models that can be installed on Japanese-style toilets!
The "Temporary Construction Site Type" is a built-in S-type portable bio-toilet. We offer an exterior type that is painted steel (which is susceptible to rust) and a siding type. We have both female-only and unisex models available, and we have a lineup tailored to various uses. Please feel free to consult us if you have any requests. 【Features】 ■ For temporary use ■ Built-in S-type ■ Lineup available according to use *For more details, please refer to the catalog or feel free to contact us.
A portable bio-toilet that is active in zoos and overseas!
The "temporary siding type" is a portable bio-toilet used in places like zoos and summit venues. We offer a wide range of products tailored to various needs, including a two-door type and urinals in pairs. Please feel free to consult us if you have any requests. 【Features】 ■ Temporary use ■ Siding type ■ A wide range of products available *For more details, please refer to the catalog or feel free to contact us.
Log cabin-style temporary bio toilet!
The "Temporary Park Installation Type (Log House Style)" is a bio-toilet designed for temporary use in a log house style. It is actively used in various locations, including exhibition halls and parks, particularly by regional development bureaus in the Kanto area. We offer both standard and deluxe models. To suit different needs, we have a lineup with varying sizes available for selection. Please feel free to consult us if you have any requests. 【Features】 ■ Log house style ■ For temporary use ■ Available in standard and deluxe models *For more details, please refer to the catalog or feel free to contact us.
Best hit product! A non-electric bio toilet!
The "AS-25PK" is a pedal-operated bio-toilet that can be used in places without a 100V power supply. It is effective as a toilet in mountainous areas and is characterized by its small processing capacity. Additionally, a hand-crank version is also available to suit different needs. Please feel free to consult us if you have any requests. 【Features】 ■ Power-free compatible ■ Pedal-operated type ■ Small processing capacity *For more details, please refer to the catalog or feel free to contact us.
![[Trivia Information] Bio Clean News November 2018 Edition](https://image.mono.ipros.com/public/product/image/81f/2000462400/IPROS74273468956484030442.png?w=280&h=280)
A case study on the introduction of solar-powered bio-toilets to mountain cabins has been published!
Our bio toilet has been adopted by a mountain lodge. Previously, they had a chair in the toilet room where a plastic bag could be set, operating on a "take your own waste back" system. However, they faced difficulties with people leaving their waste behind or discarding it along the hiking trails. To address this, they installed solar panels on the roof of the lodge and introduced our bio toilet "Violet BT-L" (which can be used up to 40 times a day). At first, users were unsure how to use it, but they successfully navigated the hiking season from June to October and have reported that they completed this season's operations without any issues. [Contents] ■ The potential of solar-powered bio toilets ■ Nutrient components of Asidoro compost *For more details, please refer to the PDF document or feel free to contact us.
Free electricity with a solar system! Hygienic bacterial decomposition for an almost odorless experience. It is a continuously circulating recycling toilet.
This is a recycling-type toilet that continuously flows water for 24 hours in the toilet bowl (within the lower device) using a solar power generation and storage system. 【Features】 ○ Waste is broken down by bacteria, and the treated water is recycled, creating a hygienic and nearly odorless toilet space. ○ Even without water supply and drainage, it can be used in places where discharge from a septic tank is not possible, as long as there is approximately 700 liters of water for initial installation. ○ Since no water is discharged externally, it contributes to environmental conservation and water resource reduction. Compared to traditional pit toilets, the frequency of emptying is reduced, with a capacity of 7-15 people in summer and 5-6 people in winter, saving effort. *For specifications, functions, and equipment, please download the catalog or feel free to contact us.
![Self-cleaning circular bio toilet 'A.Q' [NETIS registered]](https://image.mono.ipros.com/public/product/image/3f6/2000800189/IPROS32339769615328720840.jpeg?w=280&h=280)
Since it does not require pumping, it is effective in places where access is difficult, such as construction sites! This is a bio-toilet that does not require connection to water supply and drainage due to its circular design.
The "A.Q" is a self-contained, self-processing toilet equipped with a device that purifies wastewater through the action of microorganisms and recycles it into cleaning water. Being a circular system, it does not require connection to water supply or sewage systems, and by treating sludge through fermentation technology with microorganisms, it does not produce unpleasant odors and does not require pumping out. Furthermore, sterilization with chemicals is unnecessary, allowing for zero E. coli. While electricity is needed for the aeration blower and transfer pump, a small generator can be used in case of a power outage. The toilet features a washlet and is designed to achieve the same quality as household toilets, making it eligible for comfort toilet subsidies. It is a sustainable toilet that is effective both in normal times and during disasters. *For more details, please download the catalog or feel free to contact us. [Notice] This product received the "Grand Prize" at the 10th Japan Resilience Award (Resilience Award) 2024. https://www.chodai.co.jp/news/2024/04/015108.html [This product is provided by our group company, Chodai Co., Ltd.]
Even in hot summers, unpleasant odors are shut out! This temporary bio-toilet does not require water, and there is no need for pumping as microorganisms break down waste.
"Biomicaret" is a bio-toilet that decomposes waste using the power of microorganisms and incorporates a unique processing device, eliminating the need for pumping. It prevents the occurrence of unpleasant odors throughout the year, regardless of the season. Since it does not require water, it can be easily introduced in areas without sewage facilities, and rental options are also available. 【Features】 ■ No need for pumping (if used within a year and a half) ■ Usable in areas without sewage facilities ■ No installation work required (can be used immediately with a 100V power supply) ■ Achieves "solid-liquid separation" with a two-layer processing device ■ Deodorizes waste with a unique oxidation device ■ Compatible with comfortable toilet specifications* (included in the Ministry of Land, Infrastructure, Transport and Tourism's "Comfortable Toilet Case Studies") ■ Verified by the Ministry of the Environment (Implementation Number: 030-0701) *Specifications set by the Ministry of Land, Infrastructure, Transport and Tourism to ensure comfort for women in the workplace *To help you learn more about this product, we have prepared various materials such as "catalogs," "installation case studies," and "Q&A you should know when selecting a bio-toilet." Please download and take a look.
