3M Filtrete FAB01-RS Ultra Quiet Air Purifier For rooms up to 110 square feet. Small bedroom or office size. Filter captures 96% of large particles like pollen, mold spores & dust mite debris Captures small particles including smoke, smog, dust, pet dander, bacteria & particles that can carry viruses Quietest air purifier in its class AHAM certified. Part of the ENERGY STAR program