Customers say these air purifiers are quiet, compact, and effective at reducing dust, pet hair, and odors throughout their homes. Many appreciate the sleek design and automatic air quality detection that changes colors and adjusts fan speed accordingly. Users frequently mention improved breathing, reduced allergy symptoms, and fresher-smelling air, particularly those with pets. The units work well in bedrooms and living spaces, with many customers purchasing multiple sizes for different rooms. Customers find the filter replacement process simple and are often surprised by how much dust and debris the used filters contain. The automatic filter delivery service receives positive feedback for convenience.