I'm asked quite often how to cleanse spaces, whether they are at home or the office. So here is my Church's recipe for Holy Water and the blessing we use for spaces. It works — there are many other ways of blessing a space also so you should choose the one that resonates for you. If the Christian symbology doesn't work, then it's not for you and that's fine...
The wording says 'priest' but you are the priest if you are saying the prayers.
The Blessing of Holy Water
Fill a jug with water and place about a tablespoon of salt in a small bowl.
Where there is a + make the sign of the cross with your hand over the salt or the water.
Over the salt say the following:
I cleanse you, creature of salt, by the living God, by the holy É God, by the omnipotent É God, that you may be purified from all evil influences, in the name of the most Holy One, who is lord of angels and humanity, and who fills all the worlds with his majesty and glory. Amen.
I pray to you, O God, in your infinite loving kindness to stretch forth the right hand of your power upon this creature of salt, which I É bless and É hallow in your holy name. May this salt bring health of mind and body to all who are touched by it, and, wherever it is used, may every power of adversity and every illusion or working of evil be driven forth, and abide not; through thy Christ, the lord of the elements. Amen.
I cleanse you, creature of water, by the living É God, by the holy É God, by the omnipotent É God, that you may be purified from all evil influences, in the name of the most Holy One, who is lord of angels and humanity, and who fills all the worlds with his majesty and glory. Amen.
O God, for the helping and protection of humankind, you bless the water set apart for the service of goodness; send forth your light and power upon this element of water which I É bless and É hallow in your holy name. May those who use this water be empowered with all goodness, and may everything sprinkled with it be made holy and pure, and guarded from all assaults of evil, through thy Christ, the lord of the elements. Amen.
Cast the salt three times into the water, in the sign of the cross, saying:
Let salt and water mingle together in the name of the É Father and of the É Son and of the Holy É Spirit. Amen.
Blessing of Objects in General
Over the object –
Priest - In the name of God, I exorcise all influences of evil, and lay upon them the spell of Christ’s holy church, that they may be banished and driven forth from this [here name the object to be blessed], which we are about to dedicate to divine service. In the power of the É Father, and of the É Son, and of the Holy É Spirit. Amen.
The object may now be sprinkled with Holy Water and censed with blessed incense.
Priest - Let us pray.
Priest - O God you are the perpetual source of all existence, in the mystery of your boundless love, you continually breathe your divine life into the Universe, we pray you to rest the hand of your power upon this [here name the object to be blessed], which has been purified by various means, and to fill this creature with heavenly É grace and É blessing.