Precor 2000 Plus Premise Spray Flea Control-2 Cans

What are the precautions when using this in pet areas? How long to keep them out, is it really safe, etc.

how much of an area will 16oz can cover?

Can upstairs be done w/pets downstairs (not on hvac ) if doors sealed and away from entry? 3 cats-hate car-freezing

Does anyone know if this product is ok to use on leather furniture and will it stain leather?