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| Envirodesic Provider fo services and inspections for hypersensitivity and allergies in the home or workplace. |   |
| Building Air Quality's Indoor Air Quality Resource Site. Services range from Proactive indoor air quality investigations designed to identify IAQ problems before they occur, to reac. A Texas based consulting firm that can identify and eliminate Indoor Air Quality (IAQ) problems in commercial buildings. |   | |
| Envirosense Consortium Nonprofit group offering information, solutions and strategies to address indoor air quality and related environmental issues. |   | |
| Radon Reduction by Radon and Water Control Systems, Inc Located in Stamford, Connecticut. Specializing in radon and radon reduction offering radon information, radon consulting services, radon reduction system design, radon detection and reduction products. |   | |
| Restoration Consultants Offers consulting (mold, technical specs preparation, indoor environmental investigations , & asbestos) services, expert witness testimony, sewage and project management. |   | |
| In-Viro Care Inc. Providers of indoor air quality and mechanical hygiene services, from investigating and monitoring to system assessment. |   | |
| Risk Management Internet Services - Indoor Air Provider of information and services on indoor air to company, country and university users. |   | |
| Boelter and Yates Environmental consultants providing services in asbestos management, hazardous waste management, mold and mycotoxin investigations, indoor air quality management and risk assessments. |   | |
| Aegis Radon These services include measurement, mitigation, education and consultation. Provides the complete spectrum of radon related services to protect health and property value. |   | |
| Chelsea Group, Ltd. Specializes in strategic, technical and marketing consulting to major corporations for enhanced positioning of products and services relating to the indoor environment. |   | |
| Air Testing Environmental Consultants Will travel worldwide to service clients. Designed to conduct indoor air quality monitoring and testing using standard scientific protocols and procedures with an emphasis placed on finding practical cost effective solutions. |   | |
| Western Air Ducts Ltd. Based in the United Kingdom. Specialize in designing, manufacturing, installing and maintaining bespoke dust control, fume control and ventilation systems. |   | |
| Wilson Environmental Associates Consulting services for ambient and indoor air quality including monitoring, modeling, emission trading and risk assessment. |   | |
| Environmental Microbiology Laboratory, Inc. Offices in San Francisco and San Diego. Specializes in the analysis of volumetric air samples, samples for fungi and bacteria and spore trap samples for fungi. |   | |
| Air Quality Sciences, Inc. Full-service indoor air quality firm offering services in emissions testing, laboratory analysis, building investigations and certification. |   | |
| National Environmental Audit Services, Inc. Provides solutions for indoor air quality. |   | |
| Atlantic Environmental Provider of environmental, indoor air quality, health and safety services in hazardous waste, industrial hygiene and permits. |   | |
| Clark Air Systems Based in New York. Provides solutions to industrial and commercial air quality problems. |   | |
| PuriTec Provider of indoor air and water pollution information, with resources for indoor air and water quality products and systems. |   | |
| DP Filters, Inc. Distributor and manufacturer of air filtration products and services for Northern and Central Illinois. |   | |
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