<p class=\"MsoNormal\" style=\"text-align: justify;\"><span style=\"font-size: 10.0pt; mso-ansi-language: EN-GB;\" lang=\"EN-GB\">The paper focus on smoldering combustion, its description and the accompanying phenomena associated with it. Smoldering combustion causes problems in many technologies and it is important to get to know this process as much detailed as possible. In case we are able to detect even small deviations leading to smoldering combustion, we can design a very effective prevention. Practical part of this paper describes testing devices and hazards occurring in practice. The practical part contains key prevention elements, which are currently used in practice.&nbsp; </span><span style=\"font-size: 10.0pt; mso-ansi-language: EN-GB;\" lang=\"EN-GB\">In many cases, this prevention is ineffective and undesirable effects such as flaming, initiation of a dust cloud might occur.</span></p>