TOEI KAISHA, LTD. List of Products and Services

Air conditioners in offices and similar spaces generally do not have ventilation functions because they operate on a circulation system that recirculates indoor air. During the COVID-19 pandemic, it is necessary to regularly open windows for ventilation. As a result, during ventilation, the inflow of outside air can be uncomfortable, and it also places a greater load on the air conditioning system. Fresh Eco Change is a ventilation air conditioning unit that allows for comfortable ventilation while remaining sealed. When expelling indoor air, it stores heat in a sensible heat exchanger, and conversely, when drawing in outside air, it absorbs that stored heat, enabling comfortable ventilation while minimizing indoor heat loss. Essentially, the exhaust and intake do not come into direct contact within the unit, ensuring that viruses and odors do not return indoors, providing peace of mind. There are also models equipped with medium-performance filters that are effective against pollen. Fresh Eco Change is a ventilation air conditioning unit designed for comfortable ventilation even in a sealed state, looking ahead to the post-COVID era.

The Fresh Eco Cube/AEC series is an outdoor air processing air conditioning unit designed to solve ventilation issues in enclosed spaces such as factories and offices during the COVID-19 pandemic. Typically, air conditioners in factories and offices operate in a recirculation mode, which offers little to no ventilation function. Additionally, during the summer, high-temperature and high-humidity outdoor air can enter, making it difficult for the air conditioner to dehumidify adequately, leading to discomfort and condensation. The Fresh Eco Cube reduces the load on indoor air conditioners by dehumidifying and cooling the outdoor air before introducing it indoors, achieving both energy savings and comfort while simultaneously addressing ventilation issues. Furthermore, by taking in outdoor air, the indoor space is maintained at positive pressure, making it harder for dust and viruses from adjacent rooms or corridors to enter. - Introduces outdoor air into enclosed spaces such as factories and offices - Dehumidifies and cools outdoor air before bringing it indoors - Solves ventilation issues in enclosed spaces without the need to open windows by allowing existing indoor air conditioners to regulate the outdoor air processed by the Fresh Eco Cube - Stabilizes indoor temperature and humidity, reducing condensation, as the incoming outdoor air is treated - Reduces the load on existing indoor air conditioners, allowing for smaller electrical capacity - Maintains positive pressure indoors, effectively preventing the intrusion of dust and viruses from adjacent rooms and hallways.

The DPU series low dew point dry air supply device is a localized air conditioning system that supplies ultra-low humidity air with a dew point of -40°C to -60°C. Customers planning to introduce an overspecified dry room can significantly reduce installation and operational costs by switching to a localized low humidity chamber. It is optimal for the development of lithium-ion batteries, as well as next-generation all-solid-state batteries, research on powdered pharmaceuticals, and small-lot production facilities. It can also be used for research and development in semiconductors, electronic components, pharmaceuticals, and food, as well as for temporary storage of electronic components, sealing materials, and powdered products.

The water electrolysis hydrogen generation device/PGH05A is a compact hydrogen generation unit that can produce high-purity hydrogen with a purity of 99.999% from purified water. It supplies low dew point hydrogen gas with a dew point temperature below -50°C, thanks to its unique built-in adsorption dryer. After startup, it automatically begins supplying hydrogen once it reaches a purity of 99.999%, ensuring that hydrogen gas below the standard value is never supplied. Additionally, due to the low dew point, it can fill hydrogen storage alloy canisters that are sensitive to moisture, allowing for supply not only directly from the unit but also from stored canisters. The unit is equipped with safety devices such as leak tests, fans to prevent hydrogen retention, and low water alarms, and it can also indicate when the adsorbent needs to be replaced, providing peace of mind. Since it is not subject to the High-Pressure Gas Safety Act, there is no cumbersome management required, and with a built-in 3.5L tank, the frequency of water replenishment is reduced.

The heat recovery heat pump is a device that effectively utilizes the heat from wastewater, which has previously been discarded, to heat supply water. It has achieved a heating performance with a maximum outlet water temperature of 90°C through heat recovery using the heat pump method. Facilities that use heaters or boilers for heating supply water can expect significant reductions in running costs and CO2 emissions with the introduction of this system. In factories that cool return water containing heat from machinery using cooling towers while using heated water for other purposes, it is possible to reduce running costs for both the cooling tower and the heater.