I like this answer from a recent thread:

Certain spells affecting targets after they're cast do, canonically, inflict Warping. (The enchantments on the Tremere 'healing waystations' in "Against the Dark" are specifically said to do so, for example.)
My rule of thumb, for my games, is as follows.
(a) If the spell is cast directly at the person as the Target. (Note that "Clenching Grasp of the Crushed Heart" is cast directly at the person, but "Ball of Abysmal Flame" is not: the Target of BoAF is the ball of fire you create.)
(b) If the spell is actively working on a person inside an area. (Room-target "Purification of the Festering Wounds" does directly work on the people inside, but "Chamber of Spring Breezes" does not. Circle of warding against stone doesn't either, because the magic acts on stones that try to enter the circle.)
(c) If the spell is made of pure, grade-A Wisconsin cheese. (If you say "my magus casts 30 defensive spells on himself every morning", this rule comes into play, even if some of the individual spells shouldn't cause warping.)
In your case, I would simply make sure that my Sanctum/Lab is circular and use a Circle ward, which shouldn't apply warping to occupants.