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GermGuardian AC4820 HEPA PURE™ 22" Tower Air Purifier (3-speed 2-stage filtration, black)

Name: GermGuardian AC4820 HEPA PURE™ 22" Tower Air Purifier (3-speed 2-stage filtration, black)
Brand: GermGuardian
SKU: AC4820
Price: 89.99 USD
Availability: InStock

$89.99

In Stock

1 9

AC4820 View All Reviews >

GermGuardian AC4820 HEPA PURE™ 22" Tower Air Purifier (3-speed 2-stage filtration, black)

$89.99

In Stock

Add Your Replacement Filter Filter B | FLT4825

Count: 1 pack 2 pack 4 pack 12 pack

Product Overview

Purify your space with confidence. The GermGuardian AC4820 22" Tower Air Purifier circulates and cleans the air in rooms up to 743 sq. ft. per hour, making it an ideal large room air purifier for bedrooms, living rooms, and open spaces. Featuring True HEPA Pure protection, it captures 99.97% of dust, smoke, pollen, and pet dander as small as 0.1 microns*, helping reduce allergy and asthma triggers for healthier breathing. With 3 speed settings and whisper-quiet operation, this HEPA filter air purifier doubles as gentle white noise at night, making it one of the best air purifiers for bedrooms. A pre-filter and activated carbon layer trap larger particles and neutralize odors from pets, cooking, and smoke for fresher air. For lasting performance, use only genuine GermGuardian replacements: HEPA Filter B (FLT4825 series) and carbon filter FLT22CB4. Designed and performance-tested in the USA, GermGuardian has been trusted since 2005 to deliver cleaner air you can count on. *Initial efficiency value. As small as 0.1 microns from air passing through the filter media.

Product Features

True HEPA Protection: HEPA filter captures 99.97% of smoke, dust, pollen, and pet dander as small as 0.1 microns*, helping reduce allergy and asthma triggers for cleaner, fresher air.
Reduces Odors: Activated carbon pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter. Treated carbon absorbs volatile organic compounds from the air and reduces odors from smoking, cooking and pets.
Whole Room Coverage: Cleans a 153 sq. ft. room in just 12.5 minutes or up to 743 sq. ft. every hour—ideal for bedrooms, living rooms, and large open areas.
Quiet Operation: 3 speed options with the lowest setting being utilized as gentle white noise for a quiet, restful night's sleep
Genuine Replacements: Use only GermGuardian filters for certified fit and performance. Compatible with HEPA Filter B (FLT4825, FLT4825SM, FLT4825VO, FLT4850PT) and carbon filter FLT22CB4.
USA Designed & Performance Verified: *Initial efficiency value. As small as 0.1 microns from the air passing through the filter media. Trusted since 2005, GermGuardian purifiers are engineered in the USA, certified by CARB and ETL.

Assembly

Fully assembled

Adjustable Height

Height Not Adjustable

Auto Shut Off

Color

Gray

Control Type

Manual Controls

Display Type

Manual Display

Filter Change Reminder

Timer

No Timer

Oscillation

No Oscillation

Remote Included

No Remote

Number of Speeds

Effectiveness

99.97%

Essential Oil Compatible

Not Essential Oil Compatible

Primary Filter Type

HEPA - True

Use Case

Indoor

Warranty Duration

3 year warranty

Model Compatibility

FLT4825, FLT4825SM, FLT4825VO, FLT4850PT, FLT22CB4

Accessories Included

Tower Air Purifier, HEPA Pure Filter, User Manual

Noise dB-High

55 dBa

CADR-Pollen

131

Noise dB-Low

40 dBa

Night Mode

No Night Mode

Smart Technology

No Smart Technology

Maximum Coverage Area

743 Sq. Ft.

Filter Required

true

HEPA Filter

true

Replacement Filter Type

Filter B

Ionizer

No Ionizer

Particle Sensor

No Particle Sensor

Aroma Tray

No Aroma Tray

Silver Clean Technology

Humidistat

No Humidistat

Nightlight

Energy Star Certified

Not Energy Star Certified

Essential Oil Included

Essential Oil Not Included

Made in USA

Motion Sensor

No Motion Sensor

Suggested Room Size

Medium (101 to 300 sq ft)

Particle Retention Size

0.1 Microns

View full details

Performance
CADR (smoke) 99 CFM
CADR (dust) 112 CFM

Measurements
Product Height 22.00 in
Product Length/Depth 10.25 in
Product Width 6.75 in
Product Weight 8.55 lb

Safety / Regulations
ETL Listed
Not UL Listed

Instruction Manual Return Policy

How do I determine what air purifier I need based on my room size?

Small rooms below 100 SF may only require a tabletop or mini tower-style air purifier to circulate the air
Medium rooms that range between 100 SF and 170 SF will typically need a floor model that has a larger filter to effectively process the air in the room.
Large rooms over 170 SF will require a full size tower or box style unit.

What is HEPA?

HEPA stands for “High Efficiency Particulate Air.” A HEPA filter must capture 99.97% of all particles that pass through it that are 0.3 microns or greater in size. HEPA is composed of a layer of randomly arranged fibers. HEPA filters are often used in airlines, vacuum cleaners, cars, etc.

How often do I need to replace my filter?

GermGuardian® air purifier filters should be replaced every 6–8 months depending on use.

How do I know I need to replace my filter?

You will know your filter needs to be replaced when the filter turns from white to gray or black.

What is CADR?

CADR stands for “Clean Air Delivery Rate” which indicates the volume of filtered air delivered by an air purifier. CADR ratings show the effectiveness of how efficient the air purifier is at capturing fine particles, such as: tobacco smoke and plant pollens.

What is a carbon filter?

Carbon filters are also called charcoal or activated charcoal/carbon filters. It is a form of carbon that is extremely porous making it excellent at absorbing. Carbon filters can absorb a variety of chemicals and vapors simultaneously.

Is my filter washable?

The pre/charcoal filter layer that attaches to the HEPA portion of the filter can be cleaned using the brush attachment tool on your vacuum cleaner. Once the HEPA portion of the filter turns from white to gray or black, the filter must be replaced entirely.

See All FAQs