Lord, I invite Your Holy Spirit to dwell in this room, which belongs to ______________.  You are Lord over Heaven and earth, and I proclaim that You are Lord over this room as well.  Flood it with Your light and life.  Crowd out any darkness which seeks to impose itself here, and let no spirits of fear, depression, anger, doubt, anxiety, rebelliousness, or hatred find any place here.  I pray that nothing will come into this room that is not brought by You, Lord.  If there is anything here that should not be, show me so it can be taken out. 

Put Your complete proptection over this room so that evil cannot enter here by any means.  Fill this room with Your love, peace and joy.  I pray that my child will say, as David in the Bible did, “i will walk within my house with a perfect heart.  I will set nothing wicked before my eyes”. (Psalm 101:2-3)  I pray that You, Lord, will make this room a holy place, sanctified for Your Glory. 
From Power of a Praying Parent by Stormie O’Martian

You shall take the annointing oil and annoint the tabernacle and all that is in it and you shall hallow it an all it’s utensils, and it shall be holy.  Exodus 40:9

Last week I annointed rooms and said this prayer in my house.  I’ve been seeking the Lord much more closely, and satan is attacking because of it.  It’s ok when he comes after me, but when he goes after my kids, … well I let him know they are off limits to him.  I am prepared with the armor of God to fight him all the way.