The tenth international seminar on an actual problem of efficiency and safety increase of air separation products manufactures (Odessa, 5-9 October, 2008) has collected about 100 experts from more than 70th enterprises and companies from 14th states. In the work of the seminar have taken part manufacturers of equipment and those who use it for extraction oxygen, nitrogen and argon from air for maintenance of modern manufactures and technologies. The companies engaged in gas business have been submitted at the seminar also. The organizer of the seminar is the Ukrainian Association of Manufacturers of Industrial Gases «UA-SIGMA». There were 30 reports included characteristic of condition and prospects for development of air separation products manufactures learnt and discussed at the seminar, results of the research and design technologies on the problem of the seminar were stated. Active and interested perception of information, contacts with experts have allowed the participants of the seminar to become more qualified, to receive necessary recommendations for the further perfection of the equipment and air separation products manufacture. The content of reports is considered. It is deduced about the importance of carrying out of such seminars under growing demand on air separation products, for higher requirements to provided level of efficiency and safety of air separation plants.