Air purifier

1. An air purifier comprising a fan or impeller, an air inlet and an air outlet and a removable particulate filter, the purifier comprising a front panel and a back panel, a first and second opposing side panel between said front and back panels, a base and a top panel, said inlet being a first aperture disposed on at least one of said first and second opposing side panels said outlet being a second aperture disposed along a portion of an edge formed between the top and both side panels and also along an edge formed between a portion of both said side panels and a portion of said front panel and wherein the outlet is additionally disposed along a portion of the edge between the top panel and the back panel.

2. The air purifier according to claim 1 , wherein the outlet runs along the entire length of the edge between the top and back panels.

3. The air purifier according to claim 1 , wherein the outlet runs along the entire length of each of the edges between the side and top panels.

4. The air purifier according to claim 1 , wherein the inlet is disposed on at least one of said first and second opposing side panels.

5. The air purifier according to claim 1 , wherein the fan or impeller displaces air by way of a volute in a substantially vertical direction.

6. The air purifier according to claim 1 , wherein said front and top panels are formed from a single component.

7. The air purifier according to claim 1 , wherein said side and back panels are formed from a single component.

8. The air purifier according to claim 1 , wherein the removable particulate filter is disposed at an angle of from 5 to 30 degrees from the vertical when the purifier is in a working disposition.

9. The air purifier according to claim 1 , comprising a pair of removable particulate filters having a general filter plane and which are disposed such that the general filter plane is substantially orthogonal to the front panel.

10. The air purifier according to claim 1 , comprising a user interface on said top panel.