Final answer:
Thermal appliances should always be used with caution, following manufacturers' instructions and ensuring good ventilation to prevent the buildup of indoor air pollutants, as well as adhering to safety procedures to avoid direct contact with hot surfaces.
Step-by-step explanation:
When using thermal appliances, the cards should always follow safety protocols to prevent accidents and ensure proper ventilation. This includes adhering to manufacturers' instructions and taking precautions to reduce the release of pollutants into the indoor air. Precautions may involve ensuring the workspace is well-ventilated, keeping flammable materials away from heat sources, securing loose clothing, and maintaining safe distances from hot surfaces and open flames, such as those from a Bunsen burner or heated appliances. Additionally, one should be conscious of the thermal properties of materials and substances being used, such as water temperature and thermal contact when conducting experiments, to prevent burns and other injuries.