Heat radiates into walls and your belongings to get bed bugs in places that are hard to get to with insecticides Hope It Helps
Explanation:
Studies have shown that bed bugs can become resistant to chemicals and adapt to living in dangerous environments. This can make it a difficult job to treat for bed bugs with chemical products.
Comparative investigation is a research method that makes comparison across different countries of the world. Limitation : data set in different countries may be defined differently. Benefit : the method is flexible.