Hey, man. The build up of energies is covered in EA’s book Works of Darkness where he talked about how his roommate mentioned about how dark his room was even though sunlight was streaming in and the lights were on. If you want to clear the atmosphere then a banishing of some sort should work. One of the best is the exorcism given by EA in Kingdoms of Flame, which will clear out ALL energies.
You speak it three times.
Ashtu malku ta dat arkata
Sastus seckz altamu partu
Iretempal krez ta felta
Vaskalla regent met senturus
Ta sastrus estos melta
Kelta, kelta, kelta hine.