this combination keeps the litter box odor-free for up to ten days. It is fragrance-free, low-tracking, and perfect for multi-cat households. At under $1 a pound, it’s a bargain for most budgets.
I have 2 of the B35 air filters and the oldest started squeaking like maybe a bearing in the fan was going out. I decided to get the 75i and give it a try to replace the noisy 35. I moved the old one and left it running as well as I have a big living room. After another...