First, read the English article below.

Use caulk to seal cracks around door and window frames. As a bonus, your heating and air conditioning bills will be reduced. It may be necessary to hire a chimney sweep. If there is lint inside the works of the dryer, this is a fire hazard and suggests that there is a problem with the venting system. Check the ductwork and exterior venting for holes and blockages. Fix as needed. 

Now, please write a short abstract for it in Chinese. Abstract:
很多灰尘都来自于屋外面。 检查壁炉的开口，看看是否有炉灰堆积。 检查干衣机是否有棉绒飞扬。