Partners and useful links

http://www.nadca.com- NADCA - National Air Duct Cleaners Association

http://www.co-plan.at

http://www.lifa.net - LIFA AIR

http://www.hvca.org.uk- Heating and Ventilating Contractor's Association

http://www.bds-bg.org- Bulgarian Institute for Standartization

http://www.bulgaria-news.bg- Online Newspaper

http://www.uconomics.com- Facilities magazine

http://www.bia-bg.com- Bulgarian Industrial Association