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Is the ventilation in your home's bedroom sufficient? The "Permanent Natural Ventilation System for Bedrooms" proposed by Soundproofing Technology is a new concept in ventilation equipment that prevents micro-level oxygen deficiency in residential bedrooms. A fundamental condition for maintaining health is constant exposure to air, which contains a mixture of gases with 20.94% oxygen. The lungs, which supply the necessary oxygen to the blood flow of internal organs, function optimally when activated. The bedroom space becomes a micro-level oxygen-deficient area as the oxygen is converted into carbon dioxide and water vapor through respiration, resulting in increased demand for the lungs to supply the oxygen needed for bodily functions. ■ Features - Ventilation can be achieved without opening or closing windows. - With an opening rate of over 90%, there is minimal airflow resistance. - Completely rainproof and dustproof structure, requiring no electricity. * Installation is possible in wooden houses or apartments if functionality is prioritized. Please consult us for details on installation methods. * Snowproof and soundproof functions are also available if needed. [Patented in Japan, Sri Lanka, Malaysia, and the Philippines. Would you like to participate in a study session on natural ventilation?] * If you are interested, please contact us.

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Is the ventilation in your home's bedroom sufficient? The "Permanent Natural Ventilation System for Bedrooms" proposed by Soundproofing Technology is a new concept in ventilation equipment that prevents micro-level oxygen deficiency in residential bedrooms. A fundamental condition for maintaining health is to be constantly exposed to air, which contains a mixture of gases with 21% oxygen. This is especially necessary during sleep. The lungs, which supply oxygen needed for blood flow to internal organs, will function actively and normally. In the bedroom space, the oxygen in the air is transformed into carbon dioxide and water vapor through respiration, creating a micro-level oxygen-deficient environment. As a result, the lungs become busier in their role of delivering the necessary oxygen to the body's functions. Particularly, capillaries may become oxygen-deficient, and the surrounding area may enter an inactive state. When exposed to fine particulate matter, the body reacts by attempting to wash it away through other functions, which can manifest as tears or nasal discharge. ■ Features - Ventilation can be achieved without opening or closing windows. - With an opening rate of over 90%, there is minimal airflow resistance. - Completely rainproof and dustproof structure that requires no electricity. * Installation is possible in both wooden houses and apartments if functionality is prioritized. Please consult us for details on installation methods. * Snowproof and soundproof functions are also available as needed.

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The document "Natural Ventilation Times" serves as a news resource about "natural ventilation." Issues 2 through 10 cover various topics, including the problem of sick house syndrome, soundproofing and ventilation, a feature on personal experiences, and an introduction to the "natural ventilation system" that our company handles. We encourage you to download and take a look at it. [Contents] ■ Issue 2 - Comprehensive measures for prevention and treatment of sick house syndrome ■ Issue 3 - Feature on personal experiences ■ Issue 4 - Measures against "sick house syndrome," total regulation of chemical substances ■ Issue 5 - Creating healthy homes through soundproofing and ventilation, and reducing national healthcare costs *For more details, please refer to the PDF document or feel free to contact us.

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This document is a proposal regarding "natural ventilation" handled by Shouon Giken Co., Ltd. It includes information on the causes and specific symptoms of sick house syndrome and sick school syndrome, as well as methods for improvement through natural ventilation. Additionally, it introduces our product "Shouon Ventilation-kun." [Contents] ■ What if you were confined in a place without ventilation? ■ What are the specific symptoms? ■ Why rely on natural ventilation instead of mechanical ventilation? ■ Shouon Giken's natural ventilation system ■ Structure of "Shouon Ventilation-kun" *For more details, please refer to the PDF document or feel free to contact us.

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This document is an introduction to the wind-powered natural ventilation system handled by Shōin Giken Co., Ltd. It features a visit to a residence that utilizes a "soundproof ventilation opening" to ventilate the interior by harnessing the natural movement of air without using energy sources such as electricity, gas, or oil, while also shutting out sound. Additionally, it includes color photographs and floor plans of the visited residence. [Contents] - The principle is based on natural ventilation utilizing wind power. - The key is to install soundproof vents in two locations. - Homes that are quiet, cool, warm, and refreshing can be considered healthy homes. *For more details, please refer to the PDF document or feel free to contact us.

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This document is about "Soundproofing and Ventilation-kun," handled by Shoin Giken Co., Ltd. It includes information on the causes of condensation, hay fever, and sick house syndrome, as well as solutions provided by "Soundproofing and Ventilation-kun." There are many color images of the products and explanations through diagrams, making it an easy-to-understand and useful book. 【Contents】 ■ Did you know? Houses with condensation are defective houses. ■ Introduction to Soundproofing and Ventilation-kun ■ The inside of the house is full of dangerous chemicals ■ Explanation diagrams of natural ventilation ■ Examples of implementation and installation in existing condominiums *For more details, please refer to the PDF document or feel free to contact us.

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"Soundproofing and Ventilation Kun" is a soundproof natural ventilation vent that uses the pressure difference in the atmosphere and does not require electricity. While maintaining airtightness (soundproofing and dustproofing), it continuously ventilates the living space with natural wind according to the wind strength and direction at that time. Additionally, even during heating and cooling, it links the living space to natural changes, keeping the entire residence in a healthy and comfortable environment throughout the year, 365 days. 【Features】 ■ Blocks dust and sound ■ Provides natural ventilation ■ Does not use electricity ■ Maintains a healthy and comfortable environment *For more details, please refer to the PDF document or feel free to contact us.

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The "Soundproof Ventilator" is a natural ventilation system developed based on extensive experience in the field of soundproofing equipment and data obtained from various experimental results. It compensates for the weaknesses of the air environment in modern buildings surrounded by chemical building materials and exhibits excellent characteristics adapted to the climate of Japan. Fresh air flows in without opening windows, and the reduction in indoor humidity due to natural ventilation prevents heat loss from heating and cooling systems. 【Features】 ■ Soundproofing function ■ Ventilation without opening windows ■ Compact with low air resistance ■ No heat loss from heating and cooling ■ Reduces noise and prevents dust *For more details, please refer to the PDF document or feel free to contact us.

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The "Soundproof Vent" is a soundproof ventilation system that utilizes natural air movement to ventilate indoor spaces without using energy sources such as electricity, gas, or oil, while completely shutting out sound. It also helps prevent oxygen deficiency indoors during heating and cooling, creating a healthy living environment all year round. Additionally, we offer "soundproof walls and partitions," "soundproof doors," and "soundproof sliding doors." 【Features】 ■ No energy source required ■ Utilizes natural air for ventilation ■ Prevents sound from entering or leaving indoors ■ Usable all year round ■ Creates a healthy living space *For more details, please refer to the PDF document or feel free to contact us.

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The "IKP Louver" originated from the intrusion of rainwater blown up by the sea breeze through the intake louver of an emergency generator soundproof shelter installed at the coast. It was designed to effectively prevent wind and rain without utilizing a large hood or significantly altering the exterior, while maintaining an opening ratio of over 90% and ensuring low ventilation resistance. The key idea lies in the multiplication of a large single-shaped hood. The evolution of the actual concept is illustrated in photos 1, 2, and 3. 【Basic Structure for Increasing Opening Ratio】 Figure 1 illustrates the key points of the concept. It effectively prevents rain from below against the inner vertical opening surface while keeping the outer opening horizontal, allowing for an expanded free volume.

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We will present the experimental results of wind speed and pressure loss.

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【Calculation Formula for Opening Ratio】 The opening ratio is the ratio of the D dimension multiplied by the number of blades (N) to the H dimension. Opening ratio α = (D・N/H)✖100 As the D dimension increases, the opening ratio increases.

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Expressed in formulas for the face wind speed and pressure loss of the IKP louver.

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Photo 11 shows a rainproof and soundproof louver with an opening ratio of 110% (to ensure wall area). Photo 12 shows a rainproof and snowproof louver (confirmed to prevent intrusion from blizzards and heavy rain). Photo 13 is an example of installing rainproof and soundproof louvers for natural ventilation openings in residential buildings.

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This shows an example of directly attaching IKP louvers for the intake and discharge sides to the casing surface of the outdoor unit, utilizing the soundproofing function of the IKP louvers and the extremely low number of pressure devices. The noise reduction effect was below 65 dB(A) at 1 meter.

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This example demonstrates the installation of IKP louvers for both the intake and discharge sides directly on the casing surface of the outdoor unit, utilizing the soundproofing function of the IKP louvers and the extremely low characteristics of the pressure device. The noise reduction effect was below 65 dB(A) at 1 meter.

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The soundproofing mechanism, as shown in Figure 5, utilizes internal blades to provide a sound-absorbing function.

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The principle of snow prevention involves installing snow-deflecting blades on the front of the IKP louver, raising the snow prevention wrap height, and preventing snow from blowing in from the front. The height of the large hood is diversified by the shape of the blades. Photo 4 shows the appearance of the IKP louver with snow-deflecting blades attached. Photo 5 depicts the situation during snowfall, where snow naturally falls off once it accumulates to a certain extent. Due to the angle of the photograph being from below, the front appears to be in a closed state because of the snow accumulation; however, in reality, it is in the situation shown in Figure 4, and the intake is hardly hindered. Additionally, in cases where a large amount of air is drawn in by fans or similar devices, the snow carried by the suction airflow collides with the IKP louver, causing the snow crystals to break apart and appear as diamond dust of less than 1 mm, which is then brought inside. As shown in Photo 5 and Figure 4, the intrusion of blown snow was effectively blocked. The snow carried in diamond dust form by the intake airflow came into contact with the rear filter and turned into water. By installing a water collection bucket between the rear filter of the IKP louver, the dead milk from the snow itself was effectively prevented.

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The principle of rain protection lies in colliding raindrops carried by wind blowing from left to right against the blades, transforming them into a water film due to the surface tension of the water, and causing them to fall. Only the rain directed towards the upper rain protection limit point in Figure 3 will collide with the inner blades. Rain coming from the front or below will be blocked by the outer blades. The rain that enters will fall through the central drainage outlet and be drained to the outside. This drainage outlet is slightly separated from the wall, so it does not dirty the wall even after years of use.

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The "IKP Louver" originated from the intrusion of rainwater blown up by the sea breeze through the intake louver of an emergency generator soundproof shelter installed at the coastline. It was designed to effectively prevent wind and rain without utilizing a large hood or significantly altering the exterior, while maintaining an opening ratio of over 90% and ensuring low air resistance. The key idea lies in the diversification of a large single-shaped hood. The evolution of the actual concept is illustrated in photos 1, 2, and 3. 【Basic Structure for Expanding Opening Ratio】 Figure 1 illustrates the key point of the concept. It effectively prevents rain from below against the inner vertical opening surface, while keeping the outer opening horizontal to allow for an expanded free volume.

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