ODOUR REMOVAL APPARATUS AND/OR METHODS

摘要

Odour removal apparatus far a flush type toilet (1) which includes an adaptor located over the internal overflow (25) of the toilet. The adaptor allows a substantially gas tight seal to be made between the internal overflow and a fan (15) so that gases and entrained odours may be removed from the toilet pan (6)upon activation of the fan (15).The internal overflow still functions to remove excess water from the cistem. The invention also provides a fan (15) that is sufficiently small to fit within a wall (3) cavity but has sufficient vacuum and flow rate characteristics for efficient operation. A controller is also provided to allow variable speed (47) fan operation,variable fan on time (18) in response to activation of an infrared detector (52), and night light (59) operation.