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  6. [Effect Verification Test] Underfloor Dehumidifying Blower "Dry Pro"

[Effect Verification Test] Underfloor Dehumidifying Blower "Dry Pro"

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last updated:Jul 30, 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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After about one month, a drier condition (wood moisture content 12%) was confirmed!

"Dry Pro" is a floor dehumidifying blower that effectively eliminates moisture and condensation, and is useful for preventing mold, pests, and decay fungi in the wooden parts under the floor. Assuming the early stages of new construction for homes with foundation insulation methods, 36 liters of water were sprinkled on the foundation under each building, and dried wood (cedar) was installed to measure the moisture content of the wood and the humidity under the floor. As a result, the buildings where this product was installed gradually dried out by repeatedly operating the dehumidification process every day, and after about two months, an average of approximately 70% RH in a dried state was confirmed even outside of the dehumidification operation hours. [Experiment] ■ Test House A - Floor area approximately 10 tsubo - Foundation insulated underfloor (Dry Pro installed) ■ Test House B - Floor area approximately 10 tsubo - Foundation insulated underfloor (no dehumidifying blower) *For more details, please refer to the PDF document or feel free to contact us.

    Dehumidifier
2019-11-06_11h18_24.png

[Effect Verification Test] Underfloor Dehumidifying Blower "Dry Pro"

2019-11-06_11h18_24.png
2019-11-06_11h18_24.png
  • Related Link - https://www.seiho-sdk.co.jp/news_letter/2478/

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【Experimental Results】 <Temperature and Humidity Data> ■ Building A - Humidity decreases only during dehumidification operation, then returns to high humidity, but gradually dries out with repeated dehumidification operations every day. - After about 2 months, an average dry state of approximately 70% RH is confirmed even outside of dehumidification operation hours. ■ Building B - There is a temporary slight drying effect due to external air influence. - Humidity remains above 90% RH at all times, confirming a high humidity state. <Wood Moisture Content Data> ■ Building A - The wood does not rise from the state of dry wood. - After about 1 month, a drier state (wood moisture content of 12%) is confirmed. ■ Building B - The wood gradually becomes moist from the state of dry wood. - After about 2 months, the wood moisture content rises to 25%. *For more details, please refer to the PDF document or feel free to contact us.

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Published on the importance of ventilation! [Newsletter] WIND FROM FUTURE Vol. 45

Published on the importance of ventilation! [Newsletter] WIND FROM FUTURE Vol. 45

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Underfloor electronic dehumidification unit 'DRY PRO' Ver3

Underfloor electronic dehumidification unit 'DRY PRO' Ver3

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Is a underfloor ventilation fan necessary?

Is a underfloor ventilation fan necessary?

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Heat dissipation fins for the dehumidifier.

Product condition and underfloor environment of the Dry Pro Type-C after approximately 2.5 years of use.

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This is a report on the inspection results after approximately two and a half years of using the Dry Pro Type-C in the newly added crawl space (foundation packing method) created during the renovation. The inspection results showed that there was no dust or other substances adhering to the heat dissipation fins of the dehumidifier, the dehumidifying fins, the intake ports of the blower, or the fan, which could negatively affect performance. Additionally, there were no foreign objects or dust adhering to the drain hose for dehumidified water or the pump tank that could adversely impact performance, and all components were functioning normally. (Photo: Heat dissipation fins of the dehumidifier) The newly added crawl space was located on the north side in a poorly ventilated area, but no signs of mold or condensation were observed, confirming that a dry state was maintained. (Photo: Installation status) Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓

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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 testing scenes, we have received feedback such as "I 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 are the main features of our inspections. Considering feedback such as "I am interested, but it's difficult to come all the way to Fukuoka" and "It's hard to coordinate schedules for multiple people," the content will be a condensed version, but we will ensure interactive communication similar to an in-person visit. 【Flow of Remote Inspection】 ■ For underfloor ventilation... Approximately 30 minutes ■ For security... Approximately 20 minutes ■ Q&A... About 10 minutes

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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

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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 arose from such inquiries. "Compassion" is the new concept. Rather than pursuing extravagant ideas, we want to delve deeper into a common concept that everyone can be confident in. To realize this concept, we wish to return to our origins once again. In a time when a diverse array of information is overflowing, if we misinterpret the clear distinction between "purpose" and "means," even effective technology can become futile. SEIHO will firmly place "principles, fundamentals, and roots" 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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