And the previous smells were definitely from the litter boxes. 4 cats (6 back when we started with it) make a lot of waste, and even with daily waste management the urine smell would become overpowering. Breeze manages it by soaking it all up into a pad that kills the smell.

The feces can be ripe when first deposited, but it's very easy to just bag those immediately if so.

We buy replacement pads/pellets via Amazon's Subscribe And Save, which keeps the cost down. As another benefit of the system, no more litter being tracked all over the house, and no more litter dust coating everything.

The cats themselves smell very clean, as you have noted.

I hear you on cat health. We have two elderly sisters (15-ish?), one with diabetes and the other with thyroid and kidney problems. The former gets an insulin shot twice daily and the latter gets a pill and subcutaneous fluids daily. Long term maintenance for the kidney issues, so we've bought an IV stand and everything. Neither of them let on that anything was wrong; diabetes shows from intense water consumption, the thyroid issues made the cat race around and caterwaul, and we finally got to the kidney problems by taking her in after she developed a gait imbalance.

All are doing much better now with treatment.

It's a bit of a fight at the moment.