Press Information

MHI to Launch 2016 "roomist" Humidifier Lineup
-- 5 Fan-powered Steam Units, 3 Hybrid Evaporative Warm-mist Models --


Tokyo, August 22, 2016 - On September 1 Mitsubishi Heavy Industries Air-Conditioning & Thermal Systems Corporation, a Group company of Mitsubishi Heavy Industries, Ltd. (MHI), will commence the launch of eight models in its 2016 lineup of "roomist" humidifiers for the Japanese home market. The lineup is to include five fan-powered steam type units and three hybrid evaporative warm-mist models. The former type are designed for easy operation and engineered for outstanding energy savings and quiet operation. The latter models achieve one of the highest levels of energy efficiency among products of their type, and they are also the only humidifiers in the industry equipped with a function enabling sequential operation with an air-conditioner.

Fan-powered steam humidifier:SHE35ND
Among the five fan-powered steam type humidifiers, the two with a humidifying capacity of 350 milliliters per hour (ml/h) consume a maximum of only 250 watts (W) and operate at 27 decibels (dB) - making them the most energy-efficient and quietest humidifiers of their type. They will be available in two color variations: black and red. Their operating unit display panel has been further improved for easy viewing. The lineup will also include two 600ml/h models - the only humidifiers of this capacity offered by the major Japanese manufacturers – and one 1,200ml/h model.

All models in the fan-powered steam humidifier lineup, including the newly added 1,200ml/h unit, come with a standard-equipped ion filter that curbs scaling, for easy overall maintenance. As with earlier models, they feature "double plasma bacterial removal" functions: one suppresses viruses and airborne bacteria through the release of plasma ions, and the other uses a special filter to capture bacteria and mold*. The 350 and 600ml/h models also come with retractable handles convenient for carrying the unit, replenishing or removing water, etc.

All fan-powered steam humidifier models adopt MHI's proprietary system in which vaporization is achieved simply by heating the water absorbed by the vaporization cloth, so there is no worry of possible scalding even in the unlikely event the unit were to topple over, as there is no spillage of boiling water. All systems kick in swiftly, requiring only about 1 minute after operation start. Also, because with this type of system humidifying capacity is only marginally affected by temperature or humidity, dependable moisturizing is provided even in low-temperature ambient environments normally difficult to humidify. Maintenance is simple, and an "ECO" operating mode is provided to reduce the humidifying capacity.

The three hybrid evaporative warm-mist humidifier models offer humidifying capacities of 500, 700 and 850ml/h. They integrate two systems: a vaporizing system in which a moist humidifier filter is fanned to induce humidification, and a warm-mist vaporizing system in which a moist humidifier filter is placed in a warm air current to induce vaporization. When humidity is low, humidification is swiftly achieved by warm-mist vaporization; then, when the preset humidity level is reached, the unit switches to vaporization mode and adjusts the amount of humidification. As changeover between the two modes is automatically carried out depending on the humidity level, unnecessary electricity costs can be significantly curbed. When the unit is set to "ECO" operating mode, the heater is shut off and power consumption is reduced by roughly 90% compared to during normal operation.

All hybrid evaporative warm-mist humidifier models are equipped with a function enabling sequential operation with MHI's SRK-ST Series room air-conditioners. Employing a humidity sensor on the air-conditioning unit, signals (ON/OFF) are sent to the humidifier to control the preset humidity level. All models of this type also offer superlative ease of maintenance. Their pleated humidifying filter lasts a remarkably long eight seasons (SHK50NR) before replacement is needed, and the standard-equipped silver ion antibacterial agent suppresses water putrefaction and growth of bacteria and mold.

*Note: The only exception is the 350ml/h type units, which feature the latter removal system only.

Fan-powered steam humidifiers:
SHE60ND-K(left), SHE60ND-W(right)

Fan-powered steam humidifier:

Hybrid evaporative warm-mist humidifier:

About MHI Group

Mitsubishi Heavy Industries (MHI) Group is one of the world’s leading industrial groups, spanning energy, smart infrastructure, industrial machinery, aerospace and defense. MHI Group combines cutting-edge technology with deep experience to deliver innovative, integrated solutions that help to realize a carbon neutral world, improve the quality of life and ensure a safer world. For more information, please visit or follow our insights and stories on