The Stealth Smoke Freezer is an entry level accessoried device. The Stealth comes as shown only and there are no discounts available for this unit. There is no filtering or ash catcher as the other devices. We made this unit to be affordable and for those who already have accessories they wish to use on this device. The Stealth works the same as the others, but has an additional fan in front. If you put your finger in the fan it will it will hurt, so don't do it! You can certainly add any of our accessories to it if you wish to!