Filter and method of operating

1. A filter comprising:

multiple filter layers in plurality with the structural integrity of the filter as a whole, each of the layers having a plurality of pores;

wherein the layers are perforated to allow any type of filtering as the media being filtered passes through the layers as the outermost layer collects most debris; and

wherein the layers have an adhesive relationship with each other layer and an optional base layer, so that each layer may be individually removed and the one beneath is exposed as a cleaner filter surface,

wherein the pores of the layer beneath have a pore size that are larger than the pores of a previously removed layer, and the pore size of the pores of a last layer among the multiple filter layers is largest among all the layers.

2. The filter of claim 1 , wherein the filter is sized to fit within a heating ventilation and air conditioning system (HVAC).

3. The filter of claim 1 , wherein the filtering includes at least one of osmosis filtering, reverse osmosis filtering, static filtering, and sifting or sieve-like filtering effect.

4. A filter comprising:

a base layer; and

a plurality of layers including a top layer and an opposing bottom layer, each of the plurality of layers removably coupled to each other, one of the plurality of layers being coupled to the base layer, each of the plurality of layers having filter media that allows a fluid to flow therethrough, and wherein each of the plurality of layers includes a tab extending therefrom,

wherein each of the plurality of layers has a plurality of pores, and

wherein a pore size of the pores in a given layer increases as the layers extend from the top layer to the bottom layer.

5. The filter of claim 4 , wherein the plurality of layers have a parallelepiped shape.

6. The filter of claim 4 , wherein the plurality of layers have a cylindrical shape.

7. The filter of claim 4 , wherein the plurality of layers are removably coupled to each other on four or fewer sides.

8. The filter of claim 7 , wherein the plurality of layers are removably coupled to each other on three or fewer sides.

9. The filter of claim 4 , wherein each of the plurality of layers includes at least one perforation.

10. The filter of claim 4 , wherein the plurality of layers are removably coupled to each other by an adhesive.

11. The filter of claim 4 , wherein the plurality of layers are removably coupled to each other by a mechanical fastener.

12. The filter of claim 11 , wherein the mechanical fastener is a staple.

13. The filter of claim 4 , wherein the plurality of layers are removably coupled to each other via static adhesion.

14. The filter of claim 4 , wherein the plurality of layers are removably coupled to each other via an adhesive tape.

15. The filter of claim 4 , wherein each of the tabs includes an indicia thereon, the indicia indicating when a maintenance action is to occur.

16. A method for operating a filter comprising:

placing a filter within a device, the filter having a plurality of layers that include a top layer and an opposing bottom layer, and that are removably coupled to each other, each of the layers having a tab thereon wherein each of the plurality of layers has a plurality of pores, and wherein a pore size of the pores in a given layer increases as the layers extend from the top layer to the bottom layer;

operating the filter in the device; and

on a periodic or aperiodic basis, removing a layer from an inlet side of the filter.

17. The method of claim 16 , wherein the device is a heating, ventilation, and air conditioning unit.

18. The method of claim 16 , wherein the device is a furnace.