If you are an allergy sufferer, you might be careful to minimize your exposure to pets. You might have friends who you don’t visit because of this. Imagine, though, that you buy a new home, and then realize that the previous owner had pets. Unfortunately, there are many places in a home where the dander from pets might be trapped, causing you to be affected for a long time.
The only solution to the problem is to have the house cleaned thoroughly, and in the proper way. If there is carpet in the house, it needs to be vacuumed with a vacuum that is equipped with a HEPA filter. These filters prevent the dander from becoming airborne and spreading to other areas of your home.
If you have a forced air HVAC system, there could also be dander trapped inside of the ductwork, as well as, in filters. Replacing the filters might help, but it could be necessary to have a professional duct cleaning to make sure that it is as clean as possible.