Seresco USA Inc., Decatur, Georgia, a leading manufacturer of indoor air quality equipment, offers the free Natatorium Design Manual to engineers, architects, HVAC contractors and indoor pool operators. The 40-page manual is useful for any industry member involved in the design, construction, maintenance or management of commercial and residential indoor pools. The fully illustrated publication is available for free download from www.serescodehumidifiers.com under the ‘resources’ tab, or hard copies can be obtained from any Seresco North American manufacturer’s representative listed on the website’s ‘where to buy’ tab. The author, Ralph Kittler, P.E., vice president – Seresco, a 25-year industry veteran has been the lead reviser for the last 15 years for Chapter 5 – Natatorium Design (Large Building Air Conditioning Applications) in the Applications Design Handbook of ASHRAE. Seresco also offers a similar education tool, The Pool Design PDH Presentation, a free 52-minute online streaming video on the basics of indoor pool. For more information, please visit www.serescodehumidifiers.com