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  5. Ventilation and smoke exhaust equipment
  6. Underfloor ventilation unit "Kazetaro"

Underfloor ventilation unit "Kazetaro"

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last updated:Oct 01, 2025

セイホープロダクツ 業務本部
セイホープロダクツ 業務本部
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A comfortable indoor environment! Prevents condensation and extends the lifespan of the building.

The "Kazetaro" underfloor ventilation system forcibly introduces air into the crawl space, maintaining a comfortable condition for the wood. It is particularly effective in eliminating condensation. Underfloor ventilation also impacts the indoor environment, reducing conditions that promote the growth of dust mites and mold, thus benefiting the health of the family. The Kazetaro unit features a hybrid sensor that detects the amount of water vapor (humidity) in the outside air, and a hybrid controller that independently controls the Kazetaro blower type and Kazetaro mixing type, creating optimal ventilation operation for the wood in the crawl space. 【Features】 ○ Prevents the breeding of pests by improving ventilation effectiveness ○ Forcibly introduces air into the crawl space to prevent condensation ○ Maintains a comfortable condition for the wood, extending the lifespan of the building ○ Reduces conditions for the growth of dust mites and mold, creating a comfortable indoor environment For more details, please contact us or download the catalog.

    Ventilation and smoke exhaust equipmentUnit and other construction
風太郎ユニット(かくはんマイナーチェンジ).jpg

Underfloor ventilation unit "Kazetaro"

風太郎ユニット(かくはんマイナーチェンジ).jpg
風太郎ユニット(かくはんマイナーチェンジ).jpg スリムノズル.jpg 漏水センサー.jpg
  • Related Link - https://www.seiho-sdk.co.jp/products/596/
  • Special site - Product/service details - https://pr.www.ipros.com/seiho-sdk/product/

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basic information

【Features】 [Fu-taro Blower Type] ○ Adopts a duct system, allowing for flexible installation ○ Can be appropriately installed under water areas to exhaust humid air [Hybrid Controller] ○ Detects the amount of water vapor in the outside air and independently controls blower type/mixing type ○ When equipped with a phytoncide cartridge → Adds a "sterilization mode" to enhance effectiveness and operate efficiently 【Lineup】 [Underfloor Ventilation Hybrid Control System] ○ Fu-taro Unit Fu-taro Blower Type / Fu-taro Mixing Type [Underfloor Ventilation Fan] ○ Classic all-stainless steel type Fu-taro PF-20W ○ Dedicated external type Fu-taro PF-90R ○ 6-direction powerful mixing type SF-206 ● For more details, please contact us or download the catalog.

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  • 床下換気扇って必要?.jpg

    Some of you may be wondering whether to introduce the effective equipment "underfloor ventilation fan" for pest control under the floor and to prevent the deterioration of the foundation (moisture control). Why is underfloor ventilation necessary? We have created a page that clearly summarizes the effects of forced ventilation and installation. Please take a moment to read the 【related materials】 and 【related links】 below. ↓ ↓ ↓

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Underfloor ventilation "Kazetaro"

Underfloor ventilation "Kazetaro"

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[Newsletter] WIND FROM FUTURE Special Edition

[Newsletter] WIND FROM FUTURE Special Edition

TECHNICAL
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Cultivating trust with underfloor ventilation fan users.

Cultivating trust with underfloor ventilation fan users.

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Is a ventilation fan under the floor necessary?

Is a ventilation fan under the floor necessary?

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[Revised Edition] Guide to Underfloor Measures That Must Be Checked and Addressed After Heavy Rain Disasters

[Revised Edition] Guide to Underfloor Measures That Must Be Checked and Addressed After Heavy Rain Disasters

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Remote live inspection service

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■Live Inspection Start Our company conducts inspections to provide our clients with a deeper understanding of the effectiveness, safety, and installation information of the products they sell. This includes visits to our simulation studio, experimental laboratory, test house, and production line. By observing the visualization of product effects, safety tests, and durability test scenes, we have received feedback such as "I have gained a deeper knowledge of the products" and "I can confidently propose to end users." We are pleased to announce the launch of our 'Remote Live Inspection Service,' focusing on smoke simulation and security systems, which have been the main features of our inspections. Taking into account feedback such as "I am interested, but it's difficult to come to Fukuoka due to the distance" and "It's challenging to coordinate schedules for multiple people," the content will be a condensed version, but we will provide an interactive explanation similar to what you would experience in person. 【Flow of Remote Inspection】 ■ For underfloor ventilation... Approximately 30 minutes ■ For security... Approximately 20 minutes ■ Q&A... About 10 minutes

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[Revised Edition] Guide to Underfloor Measures That Must Be Checked and Addressed After Heavy Rain Disasters

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In homes where "flooding under the floor" has occurred due to heavy rain, various damages and risks of secondary damage may be lurking in unseen areas. To protect the durability of the house and the health of the family, we have organized the points that should be prioritized for inspection and action. 【Table of Contents】 1. Why is inspecting under the floor essential? 2. 【Emergency Checkpoints】First, check here! A. Presence of flooding or moisture B. Condition of the wood C. Presence of unusual odors D. Signs of termites or pests E. Condition of ventilation openings 3. Immediate response methods when damage is discovered - Mild situations with little standing water or moisture - - Situations with standing water where structural impact is a concern - The damage from flooding under and above the floor due to heavy rain requires significant recovery efforts, including cleanup. We sincerely sympathize with those who have been affected. Please be sure to read the 【related materials】【related links】. ↓ ↓ ↓

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Is a underfloor ventilation fan necessary?

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Some of you may be hesitant about introducing the effective equipment for pest control under the floor and preventing foundation deterioration (moisture control), known as "underfloor ventilation fans." Why is ventilation under the floor necessary? We have created a page that clearly summarizes the effects of forced ventilation and installation. Under the floor, a certain area of openings is required by the Building Standards Act. In other words, it mandates that there must be a ventilation opening of a certain size for moisture control under the floor. However, when looking at actual single-family homes, there are always ventilation openings, whether they are square grilles or full-perimeter ventilation with foundation packing methods. In recent years, homes using foundation insulation methods (especially in northern regions like Hokkaido) have also been built, but in this method, the underfloor is connected to the interior, and the underfloor is considered part of the interior, so there are no ventilation openings under the floor to prioritize insulation effectiveness. The adoption rate of foundation insulation methods is still low, but moisture issues are not nonexistent. I would like to touch on this topic on another occasion. Please be sure to read the 【related materials】【related links】. ↓ ↓ ↓

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Ways to Utilize Phytoncides

Building trust with underfloor ventilation fan users.

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The Importance of Customer Management The decline in population due to the aging society and low birthrate has become a social issue, affecting the consumption activities of the public. How can we overcome this? Acquiring new customers is important. At the same time, maintaining relationships with customers that we have worked hard to acquire is arguably even more important. This is because connecting with new customers (business development) incurs the highest costs for a company. If existing customers are satisfied and continue to purchase various products and services, contributing to the company's revenue, it will reduce the costs needed for acquiring new customers, or allow for more investment in business development. Our company has been focusing on the utilization of items aimed at strengthening customer touchpoints, while experimenting and refining our approach. This time, we will organize and present the details of that effort.

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セイホープロダクツ

セイホープロダクツ 業務本部

Building materials, supplies and fixtures manufacturers

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In the 21st century, the way human society exists on a global scale is being questioned. In this era of rapid change, what kind of aspirations should we have when engaging in business? SEIHO's new concept naturally emerged from such inquiries. "Compassion" is the new concept. Rather than pursuing extravagant ideas, we want to delve deeper into a simple concept that everyone can be confident in. We wish to return to our origins to realize this concept. In a time when a diverse array of information is overflowing, misjudging the clear distinction between "purpose" and "means" can render even effective technologies futile. SEIHO will firmly place "principles, fundamentals, and essence" as the axis of our management decisions, learning from the wisdom of past sages while creating genuine technologies and services that benefit society.

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