Personal Smoke Filter Device comprising a Pre-Filter

Abstract

The present disclosure provides a personal smoke filter device which comprises a pre-filter element position between the air intake and the filter portion, the pre-filter element being configured to absorb and/or repel moisture in the airflow passing through the device. Additionally, the disclosed personal filter device may be provided with a removable lid to facilitate regular drying of the contents of the smoke filter device. Also provided herein is a specially adapted HEPA filter design for resisting moisture absorption.

Description

Claims

1. A personal smoke filter device, comprising: a lid having a first opening and a mouthpiece formed about the first opening;a pre-filter element configured to absorb and/or repel moisture; anda hollow cylindrical body having a first open end and a second end, a HEPA filter being disposed within the body so as to remove particulate matter from air passing through the body, and the second end comprising one or more second openings for passing filtered air out of the device;wherein the lid is connected to the cylindrical body such that it covers the first open end forming a sealed chamber for air passage, and wherein the pre-filter element is disposed between the lid and the body such that moisture from air passed through the device via the mouthpiece is absorbed and/or repelled by the pre-filter element.

2. A personal smoke filter device according to claim 1, wherein the connection between the lid and the body is a detachable connection, allowing easy disassembly of the smoke filter device.

3. A personal smoke filter device according to claim 1, wherein the pre-filter element comprises a hydrophobic component configured to repel moisture from air passed through the pre-filter.

4. A personal smoke filter device according to claim 3, wherein the hydrophobic component is a mesh layer.

5. A personal smoke filter device according to claim 4, wherein the mesh layer is circular with a diameter greater than the diameter of the lid and body of the device so that an overlap of mesh layer is pinched between the lid and the body when the device is assembled.

6. A personal smoke filter device according to claim 4, wherein the mesh layer comprises one or more grip tabs which overlap the connection between the lid and the body and which are pinched between the lid and the body when the device is assembled.

7. A personal smoke filter device according to claim 3, wherein the pre-filter element further comprises an absorbent component configured to absorb moisture from air passed through the pre-filter.

8. A personal smoke filter device according to claim 7, wherein the absorbent component is disposed between the lid and the hydrophobic component.

9. A personal smoke filter device according to claim 7, wherein the absorbent component is a sponge.

10. A personal smoke filter device according to claim 7, wherein the absorbent component comprises attachment means for detachably connecting to the lid such that it covers the first opening when attached.

11. A personal smoke filter device according to claim 7, wherein the lid further comprises a diverter which directs air blown through the mouthpiece radially outwards from the central axis such that more surface area of the absorbent component is used.

12. A personal smoke filter device according to claim 7, wherein the lid further comprises an extension protruding from its inner surface to align the absorbent component with the connection between the lid and the body.

13. A personal smoke filter device according to claim 1, wherein the HEPA filter is formed of a rigid material shaped in tightly packed pleats.

14. A personal smoke filter device according to claim 13, wherein the HEPA filter is pre-treated with a water-repellent additive or coating.

15. A personal smoke filter device according to claim 14, wherein the additive is the Polytetrafluoroethylene-based ePTFE.

16. A personal smoke filter device according to claim 1, wherein the HEPA filter comprises activated carbon filtering.

17. A personal smoke filter device according to claim 1, wherein an outer surface of the cylindrical body is provided with one or more designs, logos, or text messages.