Cat hygiene is essential, which is why we designed the functional and practical Ariel Hooded Litter Box. Ariel litter boxes have a convenient sieving system that makes clean up quick and efficient without the hassle of scooping. To remove the old litter, just lift the perforated bottom and sift the litter that will be separated. The used litter will remain in the sieve to be thrown away, leaving the still usable litter ready to be replenished with new litter.