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The 5 Best Air Purifiers of 2018

The 5 Best Air Purifiers of 2018

Air purifiers can be used to remove odor, smoke, and other contaminants from the air. Some air purifiers can also help to inhibit the growth of mold, mildew, and fungus.

The two basic types of air purifiers are ozone generators and filter-based air purifiers that utilize HEPA filters, carbon filters, UV-C light, or some combination thereof. Before moving on to the important specifications of the 5 best air purifiers of 2018, we will explain some key features of air purifiers.

Type - ozone generators emit ozone (O3) that reacts with contaminants in the air to neutralize and remove them, whereas filter-based air purifiers use filter media to trap contaminants

Ozone Output - the amount of ozone output by an ozone generator

Timer - the time that the air purifier can be set to run before automatically turning off

HEPA Filter Size - the dimensions of the HEPA filter used in filter-based air purifiers

HEPA Filter Replacement Interval - the recommended time between HEPA filter replacements

Speeds - the number of speeds of the air purifier; higher speeds can be used to increase the amount of air purified by the air purifier

Night Light - whether the air purifier includes a light that can be used as a night light; the night light is separate from other lights used to indicate power state and mode of the air purifier

Usable In Occupied Space - whether it is safe to use the air purifier in a room with humans and animals; although you should always consult the manufacturer's recommendations for safe use, it is generally safe to use filter-based air purifiers in an occupied room and generally unsafe to use ozone generators in an occupied room

Specifications

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Manufacturer and ModelTypeOzone OutputTimerHEPA Filter SizeHEPA Filter Replacement IntervalSpeedsNight LightUsable In Occupied Space
Airthereal MA5000Ozone5,000 mg/hourup to 2 hoursN/AN/A1NoNo
Ozone Power OP5000Ozone5,000 mg/hourup to 3 hoursN/AN/A1NoNo
GermGuardian AC4825HEPA/Carbon/UV-CN/ANo
15.8 inches tall
4.8 inches wide
1.3 inches thick
6 to 8 months3NoYes
Levoit LV-H132HEPA/CarbonN/ANo7.25 inches in diameter6 months3YesYes
GermGuardian AC4100HEPA/Carbon/UV-CN/ANo
8.2 inches tall
4.6 inches wide
1.5 inches thick
6 to 8 months3NoYes
Manufacturer and ModelTypeOzone OutputTimerHEPA Filter SizeHEPA Filter Replacement IntervalSpeedsNight LightUsable In Occupied Space
Airthereal MA5000Ozone5,000 mg/hourup to 2 hoursN/AN/A1NoNo
Ozone Power OP5000Ozone5,000 mg/hourup to 3 hoursN/AN/A1NoNo
GermGuardian AC4825HEPA/Carbon/UV-CN/ANo
15.8 inches tall
4.8 inches wide
1.3 inches thick
6 to 8 months3NoYes
Levoit LV-H132HEPA/CarbonN/ANo7.25 inches in diameter6 months3YesYes
GermGuardian AC4100HEPA/Carbon/UV-CN/ANo
8.2 inches tall
4.6 inches wide
1.5 inches thick
6 to 8 months3NoYes

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