[. . . ] [. . . ] If the product is subjected to violent shocks or is dropped, it should immediately be checked by a qualified person. Do not use the product in ambient temperatures of greater than 40°C (104°F). The equipment must not be used in the presence of flammable substances or vapours, such as alcohol, insecticides, petrol, etc. In the presence of an open flame/fire, ensure that air inlets are sufficient to guarantee that combustion occurs efficiently and that there is no discharge of flue gases and that the extraction flue is not blocked. [. . . ] [. . . ]