Dont the filters remove some of the tar... in whcih case you are smoking it faster and ingesting tar....
don't they have tar and nicotine statistics on the packages where you are? untipped cigs are usually a lot stronger.
Are you sure you are smoking a cigarette!
No, the toxins go straight in your system, while with filter at least filters some of it out...even if it lasts shorter, you still get more toxins in a more direct way in...best way to get less in...well...just a good guess....stop smoking