a) Neither cats nor dogs are threatened by a low concentration of either bleach or isopropyl alcohol.
b) Anything over 10% alcohol or 0.5% sodium hypochlorite is an effective germicide & viricide.
c) Common 80-proof Vodka cut 4:1 is also very effective, and leaves no residue.

With that in mind, and the exposure requirements for UV to be effective, you would be far better served to use an alcohol solution. Which has the additional virtue of being able to get behind and into cracks and corners where light will not.

Do also research the viability of the infections involved over time, tolerance of temperature extremes, tolerance of humidity extremes and so forth. And, just for giggles, look up Hospital patient room discharge requirements.

Peter Wieck
Melrose Park, PA