"Creative concept for ventilation systems"
2003 NADCA Annual Meeting, the United States, Florida, Fort Lauderdale


"Excellent method for cleaning of central air-conditioning systems"
FISIAQ Annual Meeting, Helsinki, Finland, 19-20.3.2003


"Good central air conditioning systems cleaning concepts"
Construmat International Building Materials Exhibition, Spain, Barcelona, 29.5.2003


"Innovative technology for improving indoor air quality"
Taltek exhibition, Finland, Helsinki, 19-20.11.2003


"European standards and CEN Technical Working Group 156-- ventilation of buildings"
Eurapean Ventilation Hygiene Association (EVHA) meeting, Italy, Rome, 16.4.2004


"How effective solution suspended the air pollutants and health hazards."
"The hospital indoor air quality in the era of AIDS and SARS," Medical Seminar, Lisbon, Portugal, 5.6.2004


"Excellent solutions and impressive research work"
ICVH & EVHA joint meeting of Sweden, Stockholm, 17.9.2004


"Practical solution for Middle-East region"
Saudi Arabia 2004 environmental protection annual Conference


"Remarkable solutions for indoor air quality, meets the international standards completely"
Expotech Luxembourg, 21.4.2005


“Indoor Air Quality experts”
FISIAQ at the 2000-2004 annual seminar


"SARS emergency filtration system"
Finland University of Helsinki seminar for medical isolation wards, 11.3.2003


"Development of advanced air filters" and "concepts of clean ventilation systems"
Healthy Buildings 2003 Symposium, 7-11.12.2003


"Isolation and filtering"
25th Finland hospital seminar, Finland, Helsinki, 11-12.02.2004


"Indoor air quality in hospital"
ASCE 41st Annual Meeting, Orlando, 24.7.2004


"Indoor air quality in hospital"
International Federation of Hospital Engineering (IFHE) 17th meeting United States Orlando, 25-29.07.2004