This book provides both theoretical insights and practical guidance on measuring the thermophysical properties of regenerative products and carbon dioxide absorbents. It is designed for researchers, graduate students, and advanced students specializing in the application of thermophysical methods and instruments to study chemisorbents used in both collective and personal respiratory protection systems. The experimental data presented on the thermophysical characteristics of these chemisorbents can be valuable for optimizing air regeneration processes and ensuring high-quality air management. Covering methods and tools for investigating heat and mass transfer in regenerative systems, this monograph (Part 1: Methods and Instruments for Determining Thermophysical Properties) offers essential knowledge for advancing life support technologies. Published by TGTU Publishing House, Tambov, 2012. (PDF available)