METHOD AND APPARATUS FOR ENSURING AIR QUALITY IN A BUILDING, INCLUDING METHOD AND APPARATUS FOR CONTROLLING A WORKING DEVICE USING A HANDHELD UNIT HAVING SCANNING, NETWORKING, DISPLAY AND INPUT CAPABILITY

MOBILE AIR-FILTERING PATIENT ISOLATION SYSTEM, MOBILE AIR-FILTERING LABORATORY ISOLATION SYSTEM, AND MOBILE ROOM AIR-FILTERING SYSTEM, INCLUDING IMPROVED AIR FILTRATION UNIT

Method and apparatus for ensuring air quality in a building, including method and apparatus for controlling a working device using a handheld unit having scanning, networking, display and input capability

Method and apparatus for ensuring air quality in a building, including method and apparatus for controlling a working device using a handheld unit having scanning, networking, display and input capability

Method and Apparatus for Monitoring Refrigeration-Cycle Systems

Method and apparatus for ensuring air quality in a building, including method and apparatus for controlling a working device using a handheld unit having scanning, networking, display and input capability

Method and apparatus for monitoring refrigeration-cycle systems

Method and apparatus for monitoring refrigeration-cycle systems

Method and apparatus for ensuring air quality in a building, including method and apparatus for controlling a working device using a handheld unit having scanning, networking, display and input capability

Method and apparatus for monitoring and ensuring air quality in a building

Method and apparatus for monitoring refrigeration-cycle systems

Method and apparatus for monitoring a refrigeration-cycle system

Method and apparatus for monitoring a refrigeration-cycle system

Method and apparatus for monitoring a refrigeration-cycle system

Method and apparatus for monitoring a refrigeration-cycle system

Method and apparatus for monitoring a refrigeration-cycle system

Method and apparatus for monitoring a refrigeration-cycle system

Clog indicating device in a dust collector

Super Integrated Security and Air Cleansing Systems (SISACS)

Filter systems including optical analyte sensors and optical readers

Air filter monitoring system

Wireless receptor for communications within housings

Control apparatus for internal combustion engine

Wireless receptor for communications within housings

Wireless receptor for communications within housings

Wireless receptor for communications within housings

Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI)

Runtime sensor for small forced air handling units

Service life indicator for chemical filters

Harness assembly for a dual-mode tailgate

Air filter with a clog-detecting device

Cyclone separator

Handheld cleaning appliance

Cleaning appliance

Schedule indicator

Air treatment device having an audible indicator

Merchandise sales processing apparatus

FLUID FLOW RESTRICTION INDICATOR

Service life indicator for chemical filters

Permeable membrane water dissipation device

Connecting tube having dust sensing function for use in vacuum cleaner

Dust collection device

INTELLIGENT THERMOSTAT SYSTEM FOR MONITORING A REFRIGERANT-CYCLE APPARATUS

INTELLIGENT THERMOSTAT SYSTEM FOR LOAD MONITORING A REFRIGERANT-CYCLE APPARATUS

Air shower device, building, and system for reducing hay fever

Air filter status evaluator

Wireless receptor for communications within housings

Adaptive learning method for clean particulate filter pressure drop

Air cleaner including touch points

Refrigerator with an air filter/freshener system

METHOD AND APPARATUS FOR MONITORING REFRIGERANT-CYCLE SYSTEMS

Air filter monitoring system

Filter timer

Method and apparatus for monitoring the condition of a flexible filter

Filter change indicator

High capacity gas filter system with indicator

Particulate matter accumulation amount detection apparatus and method

Filter assembly with adjustable inlet opening

Vehicle air system having an indicator device and method

Device for and method of informing replacement time of air filter

End of service and residual life indicator

NBC filtration unit providing unfiltered and filtered air paths

Gas concrete saw filtration system

Methods and systems for detecting filter rupture

Vacuum appliance filter condition indicator

Apparatus and method for separating dust constituents out of an explosive dust-air mixture

Intelligent thermostat system for load monitoring a refrigerant-cycle apparatus

Method and apparatus for airflow monitoring refrigerant-cycle systems

Fluid flow restriction indicator

Filter apparatus, exposure apparatus, and device-producing method

Method for detecting a fault in an HVAC system

Disposable air filter assembly

Air supply systems and pressure adjustment devices for use therewith

Maximizing regulatory credits in controlling air pollution

Air filter monitoring system

Method and apparatus for monitoring air-exchange evaporation in a refrigerant-cycle system

Method and apparatus for monitoring a condenser unit in a refrigerant-cycle system

Intelligent thermostat system for monitoring a refrigerant-cycle apparatus

Method and apparatus for monitoring refrigerant-cycle systems

Filter sensor and indicator for vacuum cleaners

Floor standing treatment device

Arrangement for mounting electrical components to an aftertreatment filter