# US 2026/0077288 A1 · Air washer that facilitates the replacement of the filter assembly

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- Number: US 2026/0077288 A1
- Document ID: US20260077288A1
- Status: Published application
- Kind: A1
- Application number: 18/890,673
- Filed: 2024-09-19
- Published: 2026-03-19
- Earliest claimed: 2024-09-19
- Inventors: Quwei Tu
- Web page: https://patentgrep.com/patent/US20260077288A1

## CPC

- B01D 46/0036: {by adsorption or absorption}
- A61L 9/20: Ultraviolet radiation
- B01D 46/0028: {provided with antibacterial or antifungal means}
- B01D 46/0038: {with means for influencing the odor, e.g. deodorizing substances}
- B01D 46/0045: {by using vanes}
- B01D 46/10: Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D 46/4227: {Manipulating filters or filter elements, e.g. handles or extracting tools}
- B01D 53/02: by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)}
- F24F 8/22: using UV light
- F24F 8/80: Self-contained air purifiers
- A61L 2209/12: Lighting means
- A61L 2209/14: Filtering means
- A61L 2209/15: Supporting means, e.g. stands, hooks, holes for hanging
- B01D 2253/102: Carbon
- B01D 2257/406: Ammonia
- B01D 2257/7027: Aromatic hydrocarbons
- B01D 2257/708: Volatile organic compounds V.O.C.'s
- B01D 2257/90: Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
- B01D 2257/91: Bacteria; Microorganisms
- B01D 2258/06: Polluted air
- B01D 2273/30: Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
- B01D 2279/50: for air conditioning
- B01D 2279/65: for the sterilisation of air
- F24F 2013/205: {Mounting a ventilator fan therein}
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

## Abstract

An air washer with easy replacement of filter components is disclosed, including a cover box and a bottom box. An air inlet is fixedly provided at middle of one side of an outer wall of the bottom box, and an air outlet cover is embedded in a centre of a top of the cover box. A filter is embedded at an upper end inside of the bottom box, a second filter plate is installed at an upper end of the filter, and a first filter plate is installed at an upper end of the second filter plate. An ultraviolet sterilization lamp is fixed on the upper end inside of the bottom box, and a centrifugal fan is fixedly provided at a middle of an inner bottom surface of the bottom box. The air washer can effectively improve the cleanliness of indoor and outdoor airs.

## Claims

### Claim 1

An air washer with easy replacement of filter components, comprising a cover box and a bottom box;
wherein an air inlet is fixedly provided at middle of one side of an outer wall of the bottom box, and an air outlet cover is embedded in a centre of a top of the cover box;
wherein a filter is embedded at an upper end inside of the bottom box, a second filter plate is installed at an upper end of the filter, and a first filter plate is installed at an upper end of the second filter plate; and
wherein the bottom box is fixed with an ultraviolet sterilization lamp on one side of the upper end inside, and a centrifugal fan is fixedly provided at a middle of an inner bottom surface of the bottom box.

### Claim 2 (depends on 1)

The air washer with easy replacement of filter components according to claim 1, wherein two support blocks are fixedly provided on the one side of the outer wall of the bottom box, and the two support blocks are located at front and rear of the outer wall of the bottom box.

### Claim 3 (depends on 1)

The air washer with easy replacement of filter components according to claim 1, wherein the cover box is embedded at an upper end of the bottom box, and the cover box is fixedly connected to the bottom box by a plurality of locks.

### Claim 4 (depends on 1)

The air washer with easy replacement of filter components according to claim 1, wherein the outer wall of the bottom box has a handle mounted on one outer wall opposite to one side where the support blocks being mounted, and the handle is a convertible handle.

### Claim 5 (depends on 1)

The air washer with easy replacement of filter components according to claim 1, wherein the outer wall of the bottom box is mounted with a plug at a lower end where the handle being mounted and the plug is a triangular plug.

### Claim 6 (depends on 1)

The air washer with easy replacement of filter components according to claim 1, wherein the filter plate has a filter mesh structure for capturing larger particles; and
wherein the second filter plate is an activated carbon filter plate for removing harmful substances and effectively absorbing noxious substances of formaldehyde, benzene and ammonia in indoor air.

### Claim 7 (depends on 1)

The air washer with easy replacement of filter components according to claim 1, wherein the centrifugal fan is driven by a brushless DC frequency conversion motor and a filter mesh is embedded in an opening of the air inlet.