The right machine can clear away allergens and help you breathe easier.

Now, for a disturbing fact: several of the most common allergy triggers—including dust mites, mold, and pet dander—reside at home.

The straightforward solution? An air purifier.

Air purifiers are most efficient for allergens that float around for longer amounts of time, like pollen, pet dander, and mold spores,” says Stephen Canfield, MD, PhD, an allergist at ColumbiaDoctors Midtown in New York City.

1 Best Overall: Honeywell HPA300 True HEPA Whole Room Air Cleanser with Allergen Remov​er

2 Best Budget Pick: Febreze Tabletop HEPA Air Cleaner

3 Best for Small Rooms: Honeywell True Compact Tower air cleanser – Black

4 Perfect For Bedroom: SheerAIRE Quiet Large Room HEPA Air Cleanser AC-2045DC

5 Best Technology: Blueair Classic 205 Wi-Fi HEPASilent Air Cleaner

6 Best Features: Coway AP-1512HH Mighty air cleanser with True HEPA and Eco Mode

7 Best Multitasker: Honeywell Febreze HEPA-Type Air Purifier Tower