Carbon dioxide emission source for use with insect traps for attracting blood-sucking insects, is connected with carbon dioxide source by feed line, where reservoir comprises carbon dioxide for carbon dioxide emission
The carbon dioxide emission source (10) is connected with a carbon dioxide source (30) by a feed line (22). A reservoir comprises carbon dioxide for the carbon dioxide emission, where the feed line leads into the reservoir, and the reservoir has an opening (24) at the bottom. An independent claim is also included for a method for releasing carbon dioxide.