Raita biotoilets have been developed in Finland. They are developed for indoor use (IN) or for use in the smallhouse (OUT) - they are odorless and hygienic. The natural composting process has been enhanced in the Biotoilet with technical solutions; the right humidity, air circulation, temperature and nutrients ensure efficient composting. Biotoilets are easy to use, keep clean and empty. Biotoilets use DryMix, a substance that is added during use. Composting reduces the amount of waste to a fraction of the original in a short time - the end result is useful compost. Alternatives for handling the fluids (urine): 1) SEP - urine separation 2) ECOSEP - urinary separation of the stool, nutrients used in the composting process. 3) ECO - urine and its nutrients are used in composting process. The liquid can be used as a fertilizer liquid (SEP) in its entirety. Or it can be used in composting. enhancing the process and evaporating at the same time with in 95% to 100% of it’s amount. (ECOSEP, ECO) and the rest can be directed to a sewer system. We have developed and manufactured biotoilets since the 1970s. (TARA, EV). There are tens of thousands of our toilets in Finland, In Sweden and other European countries. Biotoilets utilize the natural biodegradation process - organic matter and nutrients are biodegradaded with microbial activity - by composting.