Systems for coupling the operations of an environmental modifying unit and a smart appliance are described. In one form the system includes a central communication unit, a baby monitor, and a dispenser for modifying the environment in which the baby monitor exists. The central communication unit, the baby monitor, and the dispenser are wirelessly connected to one another.

A system for delivering a volatile composition into the air is provided. The system includes a central communication unit capable of receiving incoming signals and sending outgoing instructions. The central communication unit is communicably connected with a memory configured to store an algorithm. The system includes a smart appliance communicably connectable with the central communication unit and configured to send incoming signals to the central communication unit alerting the central communication unit of a status of the smart appliance. The system also includes a volatile composition dispenser that is communicably connectable with the central communication through a wireless communication link. The algorithm controls the volatile composition dispenser based on incoming signals sent from the smart appliance to the central communication unit.

Ventilating units that include a recovery wheel, a supply air outlet from the wheel, an outdoor air supply fan that moves outdoor air through the recovery wheel, an economizer damper that opens to bring outdoor air directly into the supply air outlet, and an exhaust air discharge fan that moves exhaust air through the recovery wheel and to outdoors; HVAC units that include air conditioning with an air handler supply fan, a recovery wheel, an economizer section, an outdoor air supply fan, and controls; and methods of controlling airflow in an HVAC unit that include controlling an economizer damper based on outdoor and return air temperature and enthalpy or dew point. Some ventilating units connect to a packaged air handler and other ventilating units include the air handler, cooling coil, and air handler supply fan. Some embodiments include another damper that opens to bypass the recovery wheel for power exhaust.

An air purification apparatus (100) for purifying air in a target space external to the apparatus is disclosed that comprises at least one pollutant removal structure (130; 131, 132) for removing a pollutant from the air in fluid connection with a major vent (110) and a directional vent arrangement comprising a directional inlet (112) for drawing air into the air purification apparatus from a region of the target space in an aiming direction of the directional inlet; and a directional outlet (114) for expelling air in a further aiming direction towards the region. An air movement device (120; 121, 122) configured to move air from the directional inlet to the major vent in a first configuration and to move air from the major vent to the directional outlet through the at least one pollutant removal structure in a second configuration responsive to a controller (150) is also present, as well as a sensor (140) arranged to determine a concentration of the pollutant in the air in said region when the air movement device is in the first orientation, wherein the controller is responsive to the sensor and is adapted to switch the air movement device from the first configuration to the second configuration upon the concentration of the pollutant exceeding a defined pollutant concentration threshold.

Method and apparatus are disclosed for vehicle cabin odor detection and amelioration. An example vehicle includes an array of chemical sensors, a spectrograph, and an environmental control system. The example environmental control system generates a spectrum, with the spectrograph, of chemical components of volatilomes in air inside a cabin and classifies the volatilomes based on the spectrum, measurements from the array of chemical sensors, and occupant preferences. Additionally, the environmental control system, when the volatilomes are indicative of an offensive scent, applies a mitigation strategy to affect the composition of the air in the cabin.

Disclosed is a method for screening for an antimicrobial agent capable of controlling microorganisms generating offensive odor in an air conditioning apparatus. Further disclosed is a method for removing offensive odor in the air conditioning apparatus. The microorganism causing offensive odor in the air conditioning apparatus may be used in the development of a novel antimicrobial agent or in the development of an aromatic for blocking offensive odor by establishing the chemical properties of metabolites of the microorganisms. In addition, there are various industrial applications, for example, by fundamentally removing the cause of offensive odor by creating an environment in which the microorganisms cannot live in the air conditioning apparatus in advance.

A ventilation device for supplying air to a clean room having a passage duct (16) with a waste air inlet (13) for receiving waste air form the room and a supply air outlet (14) for discharging supply air (34) to the room. A speed controllable rotatable fan (49) is provided in the passage duct (16) for conveying air from a suction chamber (47) coupled to the waste air inlet (13) to a pressure chamber (48) coupled to the supply air outlet (14). An outside air duct (22) is provided for receiving outside air (27) which is emitted into the passage duct (16), and an exhaust air duct (28) is provided for receiving a part of the waste air (32) extracted from the room for exhaust to the outside. First and second air flow regulators (36, 37) are provided in the respective air ducts (22, 28), and a control unit (68) is provided for controlling operation of the air flow regulators (36, 37) and the rotational speed of the fan (49).

The present disclosure relates to a bathroom management system for heating, sterilizing or deodorizing the inside of a bathroom according to the state of the inside or outside of bathroom. The bathroom managing system includes: a ventilation unit disposed in a bathroom to exhaust air inside the bathroom to the outside; a bathroom managing apparatus disposed inside the bathroom and heat, sterilize to deodorize the inside of bathroom; and a switch disposed outside the bathroom to control the ventilation unit and communicate with the bathroom managing apparatus.

An air purifying system includes an air purifier mechanism, a controller, and a sensing device. The sensing device is configured to measure an air quality parameter of the air entering the housing via the air inlet to generate inlet air quality data, and to measure an air quality parameter of the purified air exiting the housing via the air outlet to generate outlet air quality data. The controller is configured to: receive the inlet air quality data and the outlet air quality data, compare the inlet air quality data and the outlet air quality data with their corresponding predetermined threshold ranges, and determine an action to be taken.

An Environmental Control System includes a sensor, an air purification subsystem, and a controller in communication with the sensor and air purification subsystem. The sensor detects a contaminant in the air and generates a contaminant signal. The controller compares the contaminant signal to a predicted sensory response threshold. When the contaminant signal reaches the predicted sensory response threshold, the controller commands the air purification subsystem to alter a condition in the air.