The book "Household Water Treatment Devices: A Study Guide" edited by G. In. Terpugova and other authors are an indispensable source of knowledge for anyone interested in water purification at home. Published in 2008 at the M. Publishing Center RCTU, this work is a compact and informative manual that covers a wide range of topics related to household water treatment systems. In today's world, where water quality is becoming an increasingly urgent problem, this tutorial offers readers not only theoretical foundations, but also practical recommendations for the selection and operation of water purification devices. The book is written in an accessible language and is suitable for both students studying environmental and engineering disciplines, and for a wide audience interested in improving the quality of their drinking water. The manual focuses on various types of household water treatment systems, their principles of operation, as well as methods for assessing the effectiveness of purification. Readers will be able to learn about filters, membrane systems, ion exchangers and other technologies that help ensure the purity and safety of water. The book also addresses important aspects, such as the choice of the device depending on the quality of the source water, its installation and maintenance. The manual pays special attention to environmental aspects and the impact of contaminated water on human health. The authors emphasize that clean water is not only a guarantee of health, but also an important factor for the preservation of the environment. In this context, the book raises issues of sustainable use of resources and the need to introduce technologies that minimize the negative impact on nature. Who can like this manual? First of all, it will be useful for students of technical and environmental specialties, as well as specialists in the field of water supply and sanitation . However, interest in the book can be shown by ordinary readers who seek to improve the quality of their lives and health. If you care about your well-being and want to understand the issues of water purification, this guide will be a real find for you. The style of the authors is distinguished by clarity and logical presentation, which makes the material easy to perceive. The book is full of illustrations and diagrams that help to better understand the described technologies. This approach allows the reader not only to learn theoretical knowledge, but also to apply them in practice. In addition to household water purification devices, G. In. Terpugova and his colleagues are also the authors of other works on environmental and engineering issues, which emphasizes their professionalism and deep knowledge in this area. These works may be of interest to those who want to expand their horizons and learn more about modern cleaning and environmental protection technologies. In conclusion, “Household Water Treatment Devices: A Study Guide” is not just a book, but a whole guide to the world of clean water. It will help you to understand the complex issues of cleaning and make an informed choice in favor of health and ecology. Do not miss the opportunity to learn more about how to provide yourself and your loved ones with clean and safe water, which will be the key to your well-being.