Allergens that cause asthma or allergic diseases such as dust mites, mold, cockroaches and pet dirt, pollen, etc. are more. The bedding, quilts, pillows, curtains, etc. in your home are the places where the above-mentioned allergens, especially dust mites, molds, cockroaches and pet’s dirt, can easily hide. Use dehumidifiers to control the relative humidity at about 50%. For bedding, nylon products are better, because cotton, wool, or animal skin products are easier to hide and reproduce. Try not to add b curtains, if you have to add b, then you need to wash them frequently. Duvet covers and pillowcases are best washed every 2 to 3 weeks in hot water at 65 degrees Celsius. It is best to replace the bedsprings with wooden boards, and if you already use bedsprings, you can add mite proof bedspreads and keep the decorations simple.