What people ask
Is filtering Las Vegas water necessary?
Not for safety. Both water agencies publish that valley water meets drinking standards, and the hardness minerals are not a health risk. Filtration here is about taste, smell and particles, which are real complaints and worth fixing, just not urgent ones.
Do I need filtration and a softener?
Only if you have both complaints. Many households only ever needed one. Anyone quoting you both without asking which problem you are trying to solve is selling equipment rather than solving something.
Will a whole home filter soften the water?
No. Carbon and sediment filtration do not remove calcium and magnesium. Reverse osmosis does, and that is normally a single tap rather than the whole house.