In Japan, "shared houses," where several people live in a house or other residence, are on the rise. However, one problem that arises when sharing a house or room is the smell of the toilet. The smell of the toilet right after someone has used the toilet makes people hesitant to use it. Family members can tolerate the smell, but they cannot stand the smell of strangers.



In the U.S., matches are always placed in the toilets of shared houses. This is because people believe that if they light a match after using the toilet, the smell will disappear. However, this strange custom has only given birth to an urban legend:

"When I rubbed a match, the toilet exploded!

This urban legend is said to have little effect on eliminating odors.


Fresh Air Plus" is a toilet seat that solves the problem of toilet odors. A powerful fan is attached to the toilet seat to draw in odors. The odor is then exhausted outside via a hose attached to the toilet seat. Since the air is drawn in close to the source of the odor, ventilation is said to be 30 times faster than with a normal ventilation fan attached to the ceiling or other location.


Fresh Air Plus is easy to install. Simply remove the toilet seat in use, install the Fresh Air Plus in its place, and drill a hole in the wall of the toilet. Then, simply drill a hole in the toilet wall, thread a hose through the hole, and the installation is complete.





Many of the houses used as share houses are older, so if you negotiate with the landlord, he will most likely allow you to install it.

In apartments and condominiums, it is not possible to drill holes in the walls. In such cases, simply putting the end of the hose out of the bathroom window will work.


The "Fresh Air Plus" developers plan to launch a fundraising project on kickstarter in the near future. It will be very interesting to see if investors will appear.