Disclosed is a method for controlling a laundry treating apparatus, wherein the laundry treating apparatus includes: a drum having a laundry storage space defined therein; a duct defining a channel for supplying air discharged from the drum back to the drum; a fan to move air along the duct; a heat-absorber for removing moisture from air introduced into the duct; a heat-emitter disposed inside the duct to heat air passing through the heat-absorber; a water collector for storing therein water discharged from air passing through the heat-absorber; a first filter for filtering air flowing from the drum to the duct; a second filter positioned between the first filter and the heat-absorber and filtering air passing through the first filter; a water discharger having a water storage space defined therein; a water discharger supply pipe for supplying water stored in the water collector to the water discharger; a water ejector for ejecting water into at least one of the second filter or the heat-absorber; a water ejector supply pipe for supplying water stored in the water collector to the water ejector; a water supply pipe constructed to connect the water discharger and the water collector to each other; a water supply valve for controlling opening and closing of the water supply pipe.

An air quality system includes an air precleaner, a filter identification component, and a control module. The air precleaner has a precleaner housing and a filter disposed inside the precleaner housing. The filter identification component is positioned within the precleaner housing at a first position and is mounted on the filter. The control module is positioned within the precleaner housing at a second position and is configured to emit an electrical field and communicate with the filter identification component via the emitted electrical field.

A coating material mist remover of the present disclosure includes: a first duct that discharges air containing coating material mist from an outflow port directed downward; a second duct having an inflow port opened in a horizontal direction; and an incinerable intermediate filter that is detachably connected between the first duct and the second duct and removes the coating material mist from the air. The coating material mist remover also includes: a first connection mechanism that can connect and separate the first duct and the intermediate filter; and a second connection mechanism that can connect and separate the second duct and the intermediate filter.

A modular high-efficiency particulate air (HEPA) filtration system includes first and second modular filtration units and a blower unit. The blower unit draws air from an isolated indoor space of a facility via a ventilation input to maintain negative air pressure within the isolated indoor space. The first modular filtration unit and the second modular filtration unit are connected in parallel with the ventilation input and the blower unit. The first modular filtration unit is disposed between the blower unit and the ventilation input and at least a portion of air drawn through the ventilation input by the blower unit passes through the first modular filtration unit, and the second modular filtration unit is disposed between the blower unit and the ventilation input and at least a portion of the air drawn through the ventilation input by the blower unit passes through the second modular filtration unit.

Devices, systems and methods for obtaining data representative of the condition of an air filter media of an air filter installed in a powered air-handling system, and for using such data to present an indication of the air filter media condition to a user. The devices, systems and methods use pressure information representative of at least a downstream pressure of the powered air-handling system.

The present disclosure describes a computer-implemented method that includes: monitoring an air pressure gap between two positions inside a pipe of an air filtration system; generating a first cleaning pulse inside the pipe to cause a drop of the air pressure gap being monitored; comparing a characteristic of the drop of the air pressure gap with a known profile; and based on results of the comparing, determining a status of at least one filter or filter cleaning component of the air filtration system.

An electronic sensor for monitoring aeraulic systems, comprising at least one pressure detector adapted to acquire continuously a differential pressure in a specific point of the system; elements for continuous verification of a trend curve related to the differential pressure variation being provided in order to generate an alarm condition when an inversion of the trend curve is identified, using predefined specific percentage values as limits.

A system and method for maintaining, monitoring and improving air quality and purity in a room or environment, such as a hospital room or operating room.

An air filter for a ventilation system of a motor vehicle may include a plate-shaped filter body of a folded filter material and at least one sealing strip secured to a lateral edge of the filter body. Adjacent folds of the filter body may be connected to one another via a seam, may follow one another in a longitudinal filter direction, and may extend in a transverse filter direction. The at least one sealing strip may have at least one removal opening penetrating the at least one sealing strip. At least one removal nozzle for removing air flowing through the air filter may be securable to the at least one removal opening.

A HEPA/VOC air handling system having a HEPA air filtration unit, an air handling unit, a fresh air sensor system, a return air sensor system, an air handling air sensor, and a controller.