are dehumidifiers or air purifiers better for getting rid of dustmites?

are dehumidifiers or air purifiers better for getting rid of dustmites because I heard that air purifiers only get rid of allergens that are already floating in the air and dustmite allergies are "blowed upwards in the air" only when you step on carpet or lay your head and body against the bed and pillow causing them to rise into the air.


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