We have got sponsors: Halton, Camfil, Enervent, Granlund, Swegon , The Heinz Trox Foundation. and Vallox. Also, two public financial endorser (Ministry of Environment and the Finnish Work Environment fund) provide financial support to this conference. We have also several endorsing organizations (ASHRAE, REHVA, Scanvac and Finvac) who market the conference. The conference organization is grateful for this support.