actually, there is a workable, patented, odorless toilet that was on bob vilas show. it has exhaust intake coming through the vent holes under ‘the user’ and routed directly into the sewer. no special construction required. just install it lime normal.
1.6 gal flush as well I understand
The VIP
http://odorless toilets.com
I stick with my Ferguson, the Stradivarius of toilets.