If there is a need to restrict the movement of a Japanese Spitz around the house, you can purchase a special arena and periodically close the shaggy fidget in it, having previously moved his bed, a bowl of food, and a tray there. And be sure to buy latex toys for the dog, they are safer than rubber-plastic balls and squeakers.
Another thing is the off-season period when the dog runs the risk of being sprayed with mud from a puddle every minute. To keep the animal's hair intact, breeders stock up on walking overalls for autumn and spring: they are lightweight, do not constrain movement, and do not allow moisture to pass to the body. Veterinarians recommend that nursing bitches in windy weather be dressed in tight blankets that help fluffy mothers not to catch a cold on their nipples.
Therefore, you will not have to "rinse" the fluffy in the bathroom as often as it seems at first glance (4-5 times a year is quite enough). Daily brushing is also not required for the breed, except during the moulting period. For the first time, puppies begin to shed their hair at 7-11 months. Until that time, they grow fluff, which must be periodically worked with a slicker and always "dry".