You may use Reiki anywhere and will treat people in all sorts of environments. Eventually you may want to consider having a designated room purely for Reiki.

The healing space should be as quiet as possible remove all clocks and anything that may disturb you or your client. Turn phone ringer off.

Once you have chosen your space then give it a good clean, get rid of dust and spruce the whole place up. Next is to clean the energy flow of the room. Get some salt and make a saline solution wash everything.

Get a sage smudge stick and light it. Get it smoky and go to the four corners of the room, ask for assistance to remove stagnant and negative energy.

Place a crystal in each corner of the room to assist in keeping the energies in the room pure.

Reiki everything especially the crystals.

Consider music and keep everything calm and un-cluttered.

Candles are a nice calming affect especially blues and violets.

A blanket for your client as well as extra pillows.

Masters, attune the space this will assist in a healing environment.