Air purifier

The ornamental design for air purifier, as shown and described.

1.-2. Air purifier

1.1 : Perspective

1.2 : Front

1.3 : Back

1.4 : Bottom

1.5 : Left

1.6 : Right

1.7 : Top

2.1 : Perspective

2.2 : Front

2.3 : Back

2.4 : Bottom

2.5 : Left

2.6 : Right

2.7 : Top

Patent	Priority	Assignee	Title
D338520,	Oct 18 1991	TEAC Corporation	Air cleaner
D397197,	Apr 24 1996	TEAC Corporation	Air cleaner
D402021,	Dec 12 1996	HONEYWELL INTELLECTUAL PROPERTIES, INC ; KAZ, INC	Humidifier
D421648,	Sep 19 1995	HONEYWELL CONSUMER PRODUCTS, INC	Humidifier
D432221,	Oct 06 1998	Helen of Troy Limited	Humidifier
D517181,	Jul 07 2004	Ohsung Co., Ltd.	Humidifier
D656597,	Oct 13 2010	MIDEA GROUP CO., LTD.; MIDEA GROUP CO , LTD	Humidifier
D754310,	Dec 13 2013	The Procter & Gamble Company	Air purifier
D758558,	Mar 10 2014	Illinois Tool Works Inc	Air filtration device
D776248,	Sep 30 2015	Lasko Holdings, Inc	Body for a portable fan
D785775,	Mar 15 2013	Illinois Tool Works Inc.	Cover for an air filtration device
D800882,	Nov 19 2015	PROLITEC INC	Air treatment appliance
D804001,	Dec 09 2015	Vornado Air, LLC	Heater
D835765,	Nov 10 2017	XIAMEN AIRPPLE ELECTRONIC INDUSTRY CO., LTD.	Air purifier
D865149,	Dec 21 2018	LIU, BING	Air cleaner
D865931,	Sep 27 2017	LG Electronics Inc.	Humidifying air purifier

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