To get rid of Mildew in your home be sure to keep any areas in your home dry such as around the shower, tiles etc.
Use a dehumidifier in your home as well to remove excess moisture in the air and use an air conditioner in the summer as well.
Air conditioners don't only keep a home cool in the summer they also remove moisture out the air which can cause mildew and mold to form.
To clean mildew from surfaces you can use vinegar and water or apple cider vinegar with some water.
The vinegar and apple cider vinegar can kill off bacteria and kill mold spores as well as mildew.
Use an air purifier as well in your home to help kill mold spores in the air which can lead to mildew.