Honeywell HPA080 InSight Series HEPA Air Purifier helps provide cleaner, fresher air in medium rooms. Dust, pollen, pet dander, dust mite detritus, and smoke are among the minuscule airborne allergens and particles that are 99.97% captured by its HEPA filter. In a 100 square foot space, this Honeywell air purifier can circulate and filter air up to 4.8 times per hour, according to independent testing and AHAM Verification. Air purifiers may provide cleaner, fresher air whether you have pets or stale indoor air.