Hi , we moved our laundry room upstairs last year . Some days there is strong mildew smell although it is a small room that has a relatively big window that I open a lot and big French doors that opens on the kids bathroom ( so lots of air circulation ) . Also start noticing green around the washer could this be causing the smell ? How to fix it ? There is a drain and a pan under the washer which I insisted on with the plumber to prevent flooding in case something went wrong . Thank you .