Is a underfloor ventilation fan necessary?

Exhaust type + diffusion type unit! A subfloor ventilation series that detects humidity conditions and draws in dry air from beneath the floor.

The system detects the amount of water vapor (absolute humidity) and independently controls the exhaust ventilation system and the diffusion-type blower. When there is a high amount of water vapor, only the diffusion-type blower operates, and when it is low, the exhaust ventilation system operates in conjunction, bringing in dry air from below the floor. POINT 1: Optimal independent operation of exhaust and blowing with absolute humidity sensors POINT 2: Optimal deodorization operation with standard phytoncide POINT 3: Detects abnormalities in the underfloor ventilation fan and underfloor water issues, displaying them on the controller. 【Features】 ○ Effective against underfloor moisture, condensation, and mold ○ Powerful exhaust and diffusion For more details, please contact us or download the catalog.

• Ventilation system
• Unit and other construction
• Air compressors, blowers and pumps

Exhaust type + stirring type unit type

The system detects the amount of water vapor (absolute humidity) and independently controls the exhaust ventilation system and the mixing fan. When there is a high amount of water vapor, only the mixing fan operates, and when it is low, the exhaust ventilation system operates in conjunction to bring in dry air from below the floor. POINT 1: Optimal independent operation of exhaust and air supply using absolute humidity sensors POINT 2: Optimal deodorization operation with standard phytoncide POINT 3: Detects abnormalities in the underfloor ventilation fan and water issues, displaying them on the controller. 【Features】 ○ Effective for underfloor moisture, condensation, and mold prevention ○ Powerful exhaust and mixing For more details, please contact us or download the catalog.

• Ventilation system
• Unit and other construction
• Air compressors, blowers and pumps

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 equipment
• Unit and other construction

"Humidity" that affects the lifespan of the house and the health of its residents. The cause may be the ventilation in the crawl space or attic? Introducing products for humidity control in homes! Free materials on "The Importance of Ventilation" available!

Are you taking measures against humidity in your home? - The underfloor storage in the kitchen and bathroom smells musty. - The flooring creaks. - There are stains and mold on the ceiling and in the closet... - The air conditioning is not effective. This may be due to humidity in the crawl space or attic. Hidden issues in these areas can significantly affect the lifespan of the house and the health of its occupants. Seiho Products offers solutions for home troubles with products that provide underfloor ventilation and dehumidification, attic ventilation, and devices that detect leaks caused by flooding or deterioration and damage to drainage pipes, alerting you to abnormalities. <Product lineup> *Partial excerpt - Underfloor ventilation system - Underfloor dehumidification system - Underfloor flooding sensor with timer *New release - Attic ventilation system If you are struggling with humidity, condensation in the crawl space, or heat and condensation in the attic, please consult us! Presentations using demo units and ventilation effect experiment boxes are also available. Please contact us for conditions. Additionally, we offer a document featuring a column on foundation insulation methods that may cause mold and condensation. Download it along with our product catalog!

• Underfloor storage unit
• Ventilation system

Improved air conditioning efficiency! A ventilation system that eliminates the causes of condensation and prolongs the life of your home.

The "Kaze no Suke Blower 24" is a system that continuously ventilates the attic for 24 hours, lowering the air pressure compared to the forced-ventilated interior, which prevents chemical substances from flowing into the room and creates a safe living environment. It detects the temperature in the attic with a temperature sensor and allows for switching between strong and weak operation. Additionally, it features a condensation mode that is effective for removing condensation. 【Features】 ■ Discharges hot air and improves cooling efficiency - Reduces excessive use of air conditioning, benefiting family health and saving on electricity bills. ■ Shuts out condensation - Actively circulates air in the attic to minimize temperature differences, eliminating the causes of condensation and prolonging the life of the building. ■ Supports the health of the family and home - With high ventilation capacity, it effectively expels formaldehyde and VOCs from the attic to the outdoors. *For more details, please refer to the PDF document or feel free to contact us.

• Ventilation system
• Roof and gutter construction

An article has been published about the case of introducing the expense reimbursement system "Rakuraku Seisan" at TSP Corporation. ~ In the case of TSP ~ Before the introduction, there were challenges such as dealing with the "paper" sent from various locations and the reliance on specific individuals for the tasks. After the introduction, the input and checking of FB data, which used to take 2 to 3 hours, can now be completed in just 5 minutes. Additionally, the mindset of the accounting department, which was previously reliant on manual entry, has changed. [Case Overview] ■ Challenges before introduction - Dealing with "paper" sent from various locations, reliance on specific individuals ■ Key points of introduction - A robust support system for setup and operation - Easy to start from a small scale both financially and functionally *For more details, please refer to the related links or feel free to contact us.

Engineering Meetup Report is Now Available! We have published the event report from the AI Startup Engineering Meetup, held at Google for Startups Campus Tokyo. The event brought together four AI startups, where engineers and engineering leaders with backgrounds at major companies shared insights on: ◆Product development ◆Career journeys ◆AI-related initiatives Kort Valuta was represented by our Chief Operating Officer and a Backend Engineer, who shared perspectives on product development in the fintech industry and the unique development environment of a startup. The networking session that followed sparked meaningful conversations on technology and career development, creating valuable new connections among participants. At Kort Valuta, we will continue to value collaboration with the technology community while striving to build even better products. Read the event report: https://prtimes.jp/main/html/rd/p/000000126.000076589.html We're hiring! If you're interested in building the future of fintech with us, check out our careers page: https://recruit.kortvaluta.com/?utm_source=WEB&utm_medium=sns&utm_campaign=ipros

We have published a white paper titled "Half a Year of Procrastination vs. Full Operation in 3 Months - Conditions for Companies That Should Use Initial Setup Support," aimed at companies considering the introduction and operation of attendance management systems. This document clearly explains the key points of initial setup that are prone to difficulties during implementation, as well as the differences between handling it in-house and utilizing specialized support. If you want to smoothly launch an attendance management system, please take a look.

From July 2026 until the end of September, we will hold a Summer Grand Appreciation Festival! High-pressure washers at great prices! Plan 1: A special set of SP60L/60new/60DX/60GE comes with a free Z swivel joint set! Plan 2: Customers who purchase a compressor will receive a new red hose (30m) for free! Plan 3: Washing hose [6M] available at a special price! A wide range of popular high-pressure washer series, cleaning accessories, painting machines, compressors, and other products are also available! Items listed can be purchased at great deals! Don't miss this opportunity!

(Japan) Termite Control Association Hachikusan FL No. 3359 (Japan) Termite Control Association Hachikusan MC No. 3511 The update from July 1, 2026, is now available.