Stanley Steemer begin roll out of the first Certified professional carpet cleaning service

Stanley Steemer, the largest deep cleaning service provider in the US, recently began the roll out of their professional carpet cleaning service which was the first to receive asthma & allergy friendly™ Certification from the Asthma & Allergy Foundation of America (AAFA). The distinctive Stanley Steemer vans, each of which is custom fitted at their factory with their proprietary cleaning equipment, now also display the asthma & allergy friendly™ Certification Mark.  The Certification follows extensive research and testing by airmid healthgroup, which found that the Stanley Steemer service can have a significant beneficial impact on the maintenance of healthy indoor spaces.

airmid healthgroup studied the impact of the Stanley Steemer carpet cleaning service in a cross section of US homes. The study measured allergen and microorganism levels in the air and on carpet surfaces before and after steam cleaning was carried out. The results showed that the Stanley Steemer deep cleaning process removed up to 97% of surface allergens and led to a 67% reduction in airborne cat allergen. In addition there was a 90% reduction of bacteria on carpet surfaces and airborne mold levels were reduced by 55%.

After the field study was complete, cleaned and uncleaned carpet samples were transported to airmid healthgroup’s environmental test chambers for further analysis. Carpet layers were examined using scanning electron microscopy and were analysed for allergen content by ELISA.

The results of the study were presented by airmid healthgroup at the 2013 AAAAI Annual meeting in San Antonio, Texas, which was attended by more than 7,700 allergist/immunologists, physicians and industry representatives.

Further field studies examined whether the steam cleaning process left excessive moisture in the cleaned carpet, which could lead to increased levels of relative humidity and increased mold growth. Moisture levels and the relative humidity in the cleaned area were found to return to baseline levels within 24 hours. The resurgence of allergen levels was also monitored in order to determine a care code outlining the recommended frequencies for both regular vacuuming and professional cleaning.

As a result of the research carried out by airmid healthgroup, a new asthma & allergy friendly™ Certification Standard, ASP 16:01, for Professional Steam Cleaning was submitted to AAFA and adopted following review by an external panel of experts. The standard addresses the impact of the steam cleaning service on allergen levels in the carpet and airborne allergen levels as a result of room disturbance, as well the effect on relative humidity in the air and moisture levels in the carpet. Certification is subject to audit to ensure that the high quality control standards governing the provision and standardization of the service are maintained on an ongoing basis.

Two carpet cleaning chemicals used in association with the professional steam cleaning procedure, the Stanley Steemer G-900 and Professional Carpet and Upholstery Spotter, have also been Certified under Certification Standard ASP: 09-06, Cleaning Products used in Professional Carpet Steam Cleaning. All available toxicological data for the individual constituents of the products were assessed for their allergenic/sensitizing potential and general health effects. Small chamber analysis of the indoor air concentrations of VOCs (volatile organic compounds) showed that the levels emitted did not exceed Certification thresholds after 1 hour and 24 hours.

Further information
Stanley Steemer
Journal of Allergy and Clinical Immunology

Related links
Asthma and Allergy Foundation of America
AAAAI - American Academy of Allergy Asthma & Immunology

Related Testing
Environmental Field Studies
Environmental Test Chamber
Floor Covering Testing

About airmid healthgroup
airmid healthgroup helps clients with products and services related to the built environment to differentiate their customer offerings through health relevant marketing claims. Clients include Dyson, LG, Shaw Floors, 3M, Fellowes, Tarkett, Spring Air and Kenmore. airmid healthgroup creates value for clients through a number of collaborative strategies, including field research projects, environmental test chamber studies and licensing our own intellectual property. airmid healthgroup specializes in studying the relationship between allergens, viruses, bacteria, molds or other ultra-fine particles in the air and on surfaces to the spread of illness and disease in buildings. As a leading authority on biomedical and aerobiology research, they use this deep domain knowledge to improve products and services to make the indoor environment as healthy as possible.

About Stanley Steemer:
For more than 60 years, Stanley Steemer has been providing cleaning and restoration services for both residential and business environments. They offer multiple services, including carpet cleaning, hardwood cleaning, tile and grout cleaning, upholstery cleaning and air duct cleaning. They also provide water damage restoration services. The company has more than 300 locations throughout the United States and is based in Dublin, Ohio. For more information, visit or call 1-800-STEEMER