1. The microwave oven should be placed in a place with balanced ventilation, with the back not less than 1 cm and the top not less than 5 cm, so as to facilitate exhaust and heat dissipation, and away from household appliances with magnetic fields.

2. Don't put too much food in the microwave oven, and it is best not to exceed the volume of 1/3. Food should not be placed directly on the turntable, but in containers made of heat-resistant glass, ceramics or heat-resistant plastics.