Dust, pollen, smoke removal is how well a model cleared air ... the Honeywell HPA300 is mainly how well the model removed dust and smoke from a test chamber, plus quietness for room purifiers.
Whether you suffer from allergies during the day or want clean air to sleep better at night, then having one of the best air purifiers ... at 12.3 pounds. The Honeywell HPA300 suits rooms up ...