A dehumidification system includes an evaporator, a condenser positioned proximate to the evaporator, and a drain pan. The drain pan is disposed at least partially below the evaporator and the condenser. The drain pan includes a top piece and a bottom piece disposed at least partially below the top piece. The top piece includes a drainage opening, and is configured to collect water condensed from the evaporator and drain the condensed water to the bottom piece via the drainage opening. The bottom piece includes an enclosed wall, and the condensed water drained from the top piece is directed into an area of the bottom piece that is at least partially surrounded by the enclosed wall.

A portable dehumidifier includes a cabinet, an evaporator, a condenser, a drain pan, multiple support legs, a compressor, and a fan. The cabinet includes an airflow inlet, an airflow outlet, and at least two wheels. The evaporator is located adjacent to the airflow inlet. The condenser is located adjacent to the evaporator and on a side of the evaporator opposite the airflow inlet. The drain pan is located at least partially below the evaporator and the condenser. The support legs extend from a bottom side of the drain pan towards the bottom side of the cabinet. The compressor is located below the drain pan. The fan is located adjacent to the condenser and on a side of the condenser opposite the evaporator.

A dehumidifier includes an evaporator, a condenser, a fan, and a processor. In response to determining that a measured relative humidity is greater than or equal to a relative humidity set point, the processor sets the dehumidifier to a first operating mode, wherein a compressor is enabled and the fan is set to a first fan speed while in the first operating mode. The processor further determines whether the dehumidifier has been operating in the first operating mode for a predetermined amount of time, and in response, sets the dehumidifier to a second operating mode if the measured relative humidity is still greater than the relative humidity set point, wherein the compressor is enabled and the fan is set to a second fan speed while in the second operating mode. The second fan speed is greater than the first fan speed.

A water tank for a dehumidifier includes a box body, a moving wheel, and a limit member. An installation groove is provided at a bottom of the box body, and a side wall of the installation groove being provided with a limit groove. The moving wheel is provided with a connection seat and a wheel body mounted at the connection seat. A side of the connection seat is configured to be installed in the limit groove. The limit member is disposed at least partially in the installation groove, so as to restrict the connection seat from sliding out of the limit groove.

A robot according to an embodiment of the present invention comprises: at least one wheel for traveling; a water tank in which an accommodating space accommodating water is formed; a water pump connected to the water tank; a water purifier connected to the water pump to purify and discharge water provided from the water tank; and an air cleaner configured to suction and filter air and discharge the filtered air, wherein the water tank is disposed below the water pump, the water purifier, and the air cleaner.

The misting system has, in one embodiment, two seats with misting heads above each seat. A platform supports the seats, a tank, a pump and a power source. A supply line couples the tank-supplied pump and the misters. Removable canopy is mounted above seats by vertical and curvaceous struts and the misters are mounted on the struts. A user actuated UA control on the seat(s) activates pump ON to release mist. Wheels make the module mobile. Battery, solar power, and chiller are options. A countdown timer turns OFF the pump or controllable, inline valves after initial activation of the UA control. A level sensor in the tank alerts the user via a user display. A pressurized system can be used. Multiple modules coupled together are controlled by a master module with master controls.

A system for detecting and cleaning indoor air pollution includes gas detection devices and filtering devices. The gas detection devices are adapted to detect a qualitative property and a concentration of an air pollution and output an air pollution data to perform an intelligent computation. The filtering devices are physical-typed or chemical-typed for filtering the air pollution. The filtering devices include one or more movable filtering devices, and the movable filtering device includes a gas detection device. After the intelligent computation is performed to locate an air pollution location, a control command is transmitted to the movable filtering device selectively and intelligently, and the movable filtering device receives the control command and is moved to the air pollution location. Therefore, the movable filtering device allows the air pollution data to approach to a non-detection state, thus a gas in the indoor space is cleaned to a safe and breathable state.

A portable dehumidifier includes a plurality of microchannel condenser coils, a fan, and a retractable handle. The fan is located adjacent to an airflow outlet and is configured to generate an airflow that flows into the portable dehumidifier through an airflow inlet and out of the portable dehumidifier through the airflow outlet. The airflow flows through an evaporator and the plurality of microchannel condenser coils in order to provide dehumidification to the airflow. The retractable handle is configured to slide into and out of the portable dehumidifier and to pivot upwards and lock into a tilted position to allow for transport of the portable dehumidifier.

A dehumidifier drainage system includes a primary drain pan and a secondary drain pan. The primary drain pan is disposed at least partially below an evaporator. The primary drain pan includes one or more raised ribs that are configured to at least partially block air flowing across the primary drain pan as the air flows into the evaporator. The secondary drain pan is disposed at least partially between the evaporator and the primary drain pan. The secondary drain pan includes one or more downspouts. Each downspout is configured to funnel water condensed from the evaporator into an area of the primary drain pan that is at least partially surrounded by one of the raised ribs.

A dehumidifier includes a dehumidification system. The dehumidification system includes an air inlet, a cold energy storage, an evaporator, the cold energy storage, a condenser, and an air outlet for air to pass in sequence. The air inlet and the air outlet are disposed on a main body of the dehumidifier. The evaporator, the cold energy storage, and the condenser are fixedly mounted in the main body. The evaporator is used to cool the air so that moisture in the air is condensed into water droplets. A water tray is provided under the evaporator to collect the water droplets. The cold energy storage is disposed between the evaporator and the water tray for collecting the water droplets, absorbing cold energy and cooling the passing air. The condenser is used to heat the air to form dry air. The cold energy storage is to cool the air in advance, so that the moist and hot air becomes low-temperature and high-humidity air. The dehumidifier can reduce the power of the compressor, save energy, improve the dehumidification capacity, and improve the energy efficiency.