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The GermGuardian AC151 is a tower air purifier with a 360° True HEPA filter that captures 99.97% of particles down to 0.1 microns, plus an optional UV-C bulb and a carbon pre-filter for odors. It cleans a 226 sq. ft. room in about 12.5 minutes and handles up to 1,095 sq. ft. per hour on its highest setting. Three fan speeds, an 8-hour timer, child lock, a dimmable sleep mode and a nightlight make it easy to live with in a bedroom. It is a solid mid-range pick for pet owners and allergy sufferers, though rivals in its class often add smart app control and air-quality sensors that this model lacks.
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Lowest price we've seen: $59.99 on Nov 11 at Guardian Technologies. Tracked across 3 stores since Nov 11.
Owners rate the AC151 well, praising its quiet sleep mode, easy setup and noticeable drop in dust and pet dander. Complaints center on the noise at the top speed and the ongoing cost of filters and UV bulbs.
Breathe cleaner, fresher air every day with the GermGuardian AC151 True HEPA Air Purifier. Engineered for whole-room purification, this high-performance air purifier captures up to 99.97% of dust, pollen, pet dander, and smoke as small as 0.1 microns* using a 360° HEPA filter. The optional UV-C light adds another layer of protection by helping reduce airborne allergens, germs, bacteria, and mold spores**, all while being independently certified Zero Ozone for safe, worry-free use. Perfect for bedrooms, living rooms, or home offices, this quiet air purifier circulates the air in a 226 sq. ft. room in just 12.5 minutes and up to 1,095 sq. ft. every hour. Customize your comfort with 3 fan speeds, an 8-hour timer, child lock, and ultra-quiet sleep mode that dims the display lights for uninterrupted rest. A built-in nightlight offers added convenience, while the filter reset indicator ensures your purifier is always performing at its best. For lasting results, only use Genuine GermGuardian filters and bulbs—HEPA Filter V (FLT151 series), UV-C bulb LB1000, and carbon filter FLT15CB4—for certified fit and performance. Designed and tested in the since 2005, GermGuardian air purifiers are CARB, ETL, and Zero Ozone certified, giving you trusted performance and peace of mind. *Initial efficiency value. As small as 0.1 microns from the air passing through the filter media. **Tested with Staphylococcus Albus, Escherichia Coli, Aspergillus Niger, and Phi-X174.
