This style of waterless toilet using biobags is common in Europe and America. The differentiating point of the MINI, apart from its good looks and superior finish, is the large size of its bin at 20 litres. The means the collection bin will only require emptying twice a month when used by a couple as their only toilet.
It is an excellent choice as a clean looking odourless toilet for use in a home as a second toilet or as the only toilet in a cabin for weekend or holiday use.
The sterile urine is kept separate from the solids and is directed into a small bathtub sized gravel absorption trench (or can be collected and diluted and used as a fertiliser). A low wattage ventilation fan run on solar or mains power pulls air through the system which dehydrates the solids. Once the collection bin is full it is taken to the garden compost pile or bin and the starch based biobag dropped in and covered with organic matter, such as grass clippings, where the bag and contents will break down.