Computer-implemented systems and methods for estimating a replacement status of an HVAC air filter. Outdoor weather data (e.g., outdoor temperature information), is obtained. A Total Runtime Value of the HVAC system is determined based upon the obtained outdoor weather data. Finally, a replacement status of the air filter is estimated as a function of a comparison of the Total Runtime Value with a Baseline Value. By correlating air filter replacement status with an estimated runtime of the HVAC system, a credible predictor of air filter usage is provided. By estimating fan runtime based on easily-obtained outdoor weather data, the methods are readily implemented with any existing HVAC system and do not require installation of sensors or other mechanical or electrical components to the HVAC system.

The present invention provides an air filtering system for use in a building and an HVAC system, wherein the air filtering system comprises: an outside-air inlet; a first filtering stage at the downstream of the outside-air inlet; a second filtering stage at the downstream of the first filtering stage; a collection module for collecting outside-air quality information; and a control module in communication with the collection module, wherein the control module adjusts an operation state of the first filtering stage and/or the second filtering stage based on the air quality information collected by the collection module. The system of the present invention has the advantages of energy saving, low maintenance cost, etc.

A system to characterize water in a building includes a processor; a water sensor coupled to the processor; a water valve coupled to the processor; an encryption module executed by the processor to secure water data; and a transceiver to communicate secured water data over a network to a remote processor.

Smoke and/or soot damage to an interior of a property, such as a residential building or home, may be mitigated. A controller is in communication with a heating, ventilation, and air conditioning (HVAC) system of the property. The controller is configured to receive an alert and/or intelligent home telematics data generated based upon a potential presence of smoke in a location associated with the property, either exterior or interior to the property. In response to receiving the alert and/or intelligent home telematics data, the controller is further configured deactivate an air circulation function of the HVAC system to mitigate smoke or fire damage to the property. The intelligent home telematics data may be generated by various smoke, fire, audio, visual, infrared, motion, and/or other smart sensors mounted about the interior and/or exterior of the property.

A system includes an inlet to collect air from outside a building; an air filter coupled to the inlet; a baffle to receive air from the inlet; an actuator coupled to the baffle; one or more sensors exposed to air from the air filter to determine air quality; a controller coupled to the one or more sensors and the actuator, the controller closing the baffle if air quality is below a threshold; and an outlet positioned after the baffle to deliver air to the building.

A system to characterize gas in a building includes a processor; a gas sensor coupled to the processor; a gas valve coupled to the processor; an encryption module executed by the processor to secure gas data; and a transceiver to communicate secured gas data over a network to a remote processor.

A real-time system and method for personal air pollution exposure and inhaled dose management is described. A personal device (e.g., smartphone) determines personal exposure and inhaled dose metrics (e.g., daily accumulated dose), and compares daily histories of these metrics with personal health histories (e.g., self-reported daily asthma symptoms/inhaler use) to provide notifications when adverse health effects (e.g., asthma exacerbation) are likely to occur. The system notifications provide a personalized exposure/dose management tool by recommending behavioral changes to reduce exposure/dose (e.g., change time-location, time-physical activities, building operation). These behavioral changes are then used by the system to modify the real-time exposure and dose determined by the system.

An artificial intelligence (AI) device includes a display, a communication unit configured to transmit indoor air quality information received from an air quality measurement device and meta information input through the display to an AI server, and a processor configured to receive an air quality analysis report generated based on outdoor air quality information, the indoor air quality information and the meta information from the AI server through the communication unit and display the received air quality analysis report on the display. The air quality analysis report includes a first analysis report including a result of analyzing an indoor air quality condition during a measurement period of the air quality measurement device, and a second analysis report including an air quality type according to the indoor air quality condition and a solution for fine dust management according to the air quality type.

Methods and apparatuses are provided for detecting parameter. The method includes: acquiring at least one intake air quality parameter of an air intake area of an air purifier and at least one output air quality parameter of an air discharging area of the air purifier; determining a purification parameter corresponding to the intake air quality parameter of the air intake area and the output air quality parameter of the air discharging area; and outputting the purification parameter.

The present invention relates to a smart air purifying ventilator installed on a window frame. More specifically, the smart air purifying ventilator of the present invention includes a frame part installed on a window frame and having two or more openings formed therein, a blowing part installed in the frame part and responsible for introducing or discharging air through the openings, filters for purifying air introduced or discharged by the blowing part, an outdoor side cover part coupled to one side of the frame part, a front panel part coupled to another side of the frame part, and a control unit for comparing the inside and outside air conditions of the window frame and controlling the blowing part to determine inflow or outflow of air.