Holmes Air Purifiers

Overview

Like Honeywell, Holmes targets the lower price end of the air purifier market. Units tend to be on the smaller size and many use HEPA filters. Holmes has submitted some of its units for testing under the Clean Air Delivery Rate program but have not fared well possibly due to weak fan strength or construction that leaks air passing through it resulting in the discharge of unfiltered air.

Holmes Models

Holmes AOR1000FC-U	Ratings	Technical Specifications
Est. Price - $59.99	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 45 Sq. Ft Circulation ^? : NA Filter Type ^? : Triple Layer Filter: Arm & Hammer Baking Soda, Zeolite & Carbon Filter Life Est. ^? : NA Size: 7"H x 11.5"W x 10.5"D Weight: 5.7 lbs Noise Level: NA Energy Star? ^? : No

Holmes AOR1000FC-U

Ratings

Technical Specifications

Est. Price - $59.99

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 45 Sq. Ft

Circulation ^? : NA

Filter Type ^? : Triple Layer Filter: Arm & Hammer Baking Soda, Zeolite & Carbon

Filter Life Est. ^? : NA

Size: 7"H x 11.5"W x 10.5"D

Weight: 5.7 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP115Z-U	Ratings	Technical Specifications
Est. Price - $19.99	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : NA Circulation ^? : NA Filter Type ^? : Multi-stage Filter & Ionizer Filter Life Est. ^? : NA Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP115Z-U

Ratings

Technical Specifications

Est. Price - $19.99

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : NA

Circulation ^? : NA

Filter Type ^? : Multi-stage Filter & Ionizer

Filter Life Est. ^? : NA

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP223	Ratings	Technical Specifications
Est. Price - $39.99	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 70 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : 3-6 Months Size: 8.5"H x 9"W x 6"D Weight: 4.3 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP223

Ratings

Technical Specifications

Est. Price - $39.99

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 70 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : 3-6 Months

Size: 8.5"H x 9"W x 6"D

Weight: 4.3 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP242-TU1	Ratings	Technical Specifications
Est. Price - NA	Clean Air Delivery Rate (CADR) ^? Smoke - 70 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 110 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : NA Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP242-TU1

Ratings

Technical Specifications

Est. Price - NA

Clean Air Delivery Rate (CADR) ^?

Smoke - 70 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 110 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : NA

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP412W-TU	Ratings	Technical Specifications
Est. Price - NA	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 120 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : NA Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP412W-TU

Ratings

Technical Specifications

Est. Price - NA

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 120 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : NA

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP422RC-TU	Ratings	Technical Specifications
Est. Price - $108.01	Clean Air Delivery Rate (CADR) ^? Smoke - 116 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 180 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : 3 Months Size: 26.5"H x 9.5"W x 6.5"D Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP422RC-TU

Ratings

Technical Specifications

Est. Price - $108.01

Clean Air Delivery Rate (CADR) ^?

Smoke - 116 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 180 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : 3 Months

Size: 26.5"H x 9.5"W x 6.5"D

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP424-U	Ratings	Technical Specifications
Est. Price - $75.81	Clean Air Delivery Rate (CADR) ^? Smoke - 116 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 180 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : 3-6 Months Size: 28"H x 10"W x 8"D Weight: 11.4 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP424-U

Ratings

Technical Specifications

Est. Price - $75.81

Clean Air Delivery Rate (CADR) ^?

Smoke - 116 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 180 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : 3-6 Months

Size: 28"H x 10"W x 8"D

Weight: 11.4 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP706-U	Ratings	Technical Specifications
Est. Price - $64	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 80 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter & Washable Pre-Filter Filter Life Est. ^? : 10-12 Months Size: 15.7"H x 8.2"W x 11.4"D Weight: 8 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP706-U

Ratings

Technical Specifications

Est. Price - $64

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 80 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter & Washable Pre-Filter

Filter Life Est. ^? : 10-12 Months

Size: 15.7"H x 8.2"W x 11.4"D

Weight: 8 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP716-U	Ratings	Technical Specifications
Est. Price - $88.78	Clean Air Delivery Rate (CADR) ^? Smoke - 100 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 150 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter & Washable Pre-Filter Filter Life Est. ^? : NA Size: 28.3"H x 8.2"W x 11.1"D Weight: 14 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP716-U

Ratings

Technical Specifications

Est. Price - $88.78

Clean Air Delivery Rate (CADR) ^?

Smoke - 100 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 150 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter & Washable Pre-Filter

Filter Life Est. ^? : NA

Size: 28.3"H x 8.2"W x 11.1"D

Weight: 14 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP726-U	Ratings	Technical Specifications
Est. Price - $107.95	Clean Air Delivery Rate (CADR) ^? Smoke - 168 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 256 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter & Carbon Filter Filter Life Est. ^? : 3-18 Months Size: 18.7"H x 17.73"W x 9.3"D Weight: 17.1 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP726-U

Ratings

Technical Specifications

Est. Price - $107.95

Clean Air Delivery Rate (CADR) ^?

Smoke - 168 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 256 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter & Carbon Filter

Filter Life Est. ^? : 3-18 Months

Size: 18.7"H x 17.73"W x 9.3"D

Weight: 17.1 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP756-U	Ratings	Technical Specifications
Est. Price - $208.45	Clean Air Delivery Rate (CADR) ^? Smoke - 270 / 450 Pollen - 230 / 450 Dust - 275 / 450 Consumer Reports ^? Score - 62 / 100 Dust/Pollen/Smoke (High Setting) - 5 / 5 Est. Yearly Cost - NA	Room Size ^? : 418 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : 3-18 Months Size: 22.4"H x 10.4"W x 21.4"D Weight: 23 lbs Noise Level: NA Energy Star? ^? : Yes

Holmes HAP756-U

Ratings

Technical Specifications

Est. Price - $208.45

Clean Air Delivery Rate (CADR) ^?

Smoke - 270 / 450
Pollen - 230 / 450
Dust - 275 / 450

Consumer Reports ^?

Score - 62 / 100
Dust/Pollen/Smoke
(High Setting) - 5 / 5
Est. Yearly Cost - NA

Room Size ^? : 418 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : 3-18 Months

Size: 22.4"H x 10.4"W x 21.4"D

Weight: 23 lbs

Noise Level: NA

Energy Star? ^? : Yes

Holmes HAP1200-U	Ratings	Technical Specifications
Est. Price - $78.39	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - 33 / 100 Dust/Pollen/Smoke (High Setting) - 2 / 5 Est. Yearly Cost - NA	Room Size ^? : 170 Sq. Ft Circulation ^? : NA Filter Type ^? : Permanent Filter, HEPA Filter & Pre-Filter Filter Life Est. ^? : NA Size: 28.9"H x 8.5"W x 11.2"D Weight: 13.4 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP1200-U

Ratings

Technical Specifications

Est. Price - $78.39

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - 33 / 100
Dust/Pollen/Smoke
(High Setting) - 2 / 5
Est. Yearly Cost - NA

Room Size ^? : 170 Sq. Ft

Circulation ^? : NA

Filter Type ^? : Permanent Filter, HEPA Filter & Pre-Filter

Filter Life Est. ^? : NA

Size: 28.9"H x 8.5"W x 11.2"D

Weight: 13.4 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP2400B-U	Ratings	Technical Specifications
Est. Price - $49.95	Clean Air Delivery Rate (CADR) ^? Smoke - 70 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 110 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : 3-6 Months Size: 6"H x 13.5"W x 10.5"D Weight: 6 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP2400B-U

Ratings

Technical Specifications

Est. Price - $49.95

Clean Air Delivery Rate (CADR) ^?

Smoke - 70 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 110 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : 3-6 Months

Size: 6"H x 13.5"W x 10.5"D

Weight: 6 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP8615-U	Ratings	Technical Specifications
Est. Price - $72.59	Clean Air Delivery Rate (CADR) ^? Smoke - 75 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 116 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : NA Size: 15.6"H x 9.8"W x 12.6"D Weight: 9.6 lbs Noise Level: NA Energy Star? ^? : No

Holmes HAP8615-U

Ratings

Technical Specifications

Est. Price - $72.59

Clean Air Delivery Rate (CADR) ^?

Smoke - 75 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 116 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : NA

Size: 15.6"H x 9.8"W x 12.6"D

Weight: 9.6 lbs

Noise Level: NA

Energy Star? ^? : No

Holmes HAP9240-U	Ratings	Technical Specifications
Est. Price - NA	Clean Air Delivery Rate (CADR) ^? Smoke - 65 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 101 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : NA Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP9240-U

Ratings

Technical Specifications

Est. Price - NA

Clean Air Delivery Rate (CADR) ^?

Smoke - 65 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 101 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : NA

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP9412B-U	Ratings	Technical Specifications
Est. Price - NA	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 110 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : 3-6 Months Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP9412B-U

Ratings

Technical Specifications

Est. Price - NA

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 110 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : 3-6 Months

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP9412W-U	Ratings	Technical Specifications
Est. Price - NA	Clean Air Delivery Rate (CADR) ^? Smoke - NA / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 110 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : 3-6 Months Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP9412W-U

Ratings

Technical Specifications

Est. Price - NA

Clean Air Delivery Rate (CADR) ^?

Smoke - NA / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 110 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : 3-6 Months

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP9424B-U	Ratings	Technical Specifications
Est. Price - NA	Clean Air Delivery Rate (CADR) ^? Smoke - 105 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 165 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : NA Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP9424B-U

Ratings

Technical Specifications

Est. Price - NA

Clean Air Delivery Rate (CADR) ^?

Smoke - 105 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 165 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : NA

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Holmes HAP9424W-U	Ratings	Technical Specifications
Est. Price - $69.99	Clean Air Delivery Rate (CADR) ^? Smoke - 105 / 450 Pollen - NA / 450 Dust - NA / 450 Consumer Reports ^? Score - NA / 100 Dust/Pollen/Smoke (High Setting) - NA / 5 Est. Yearly Cost - NA	Room Size ^? : 165 Sq. Ft Circulation ^? : NA Filter Type ^? : HEPA Filter Filter Life Est. ^? : NA Size: NA Weight: NA Noise Level: NA Energy Star? ^? : No

Holmes HAP9424W-U

Ratings

Technical Specifications

Est. Price - $69.99

Clean Air Delivery Rate (CADR) ^?

Smoke - 105 / 450
Pollen - NA / 450
Dust - NA / 450

Consumer Reports ^?

Score - NA / 100
Dust/Pollen/Smoke
(High Setting) - NA / 5
Est. Yearly Cost - NA

Room Size ^? : 165 Sq. Ft

Circulation ^? : NA

Filter Type ^? : HEPA Filter

Filter Life Est. ^? : NA

Size: NA

Weight: NA

Noise Level: NA

Energy Star? ^? : No

Air Purifier Noise Chart - Decibel Ratings of Common Sounds
Source	Decibel Rating (dB)
Falling leaves	0-10
Whisper	10-20
Soft music	20-30
Mosquito buzz	40-50
Normal voices	50-70
Traffic sounds	70-80
Vacuum cleaner	80-90
Thunder	90-100
Chain saw	110-120
Rock concert	120-130
Pain threshold (jet take off)	130-140
Perforation of ear drum (gun shot)	160 and higher

Holmes Company Info

Holmes has been in the air purifier business since 1982. The Holmes brand is a subsidiary of the Jarden Corporation, which owns other brands such as Sunbeam, Mr. Coffee, and Crock-Pot. Jarden also owns another air purification company, Bionaire.

Holmes Air Purifier Technology

The many air cleaners designed by Holmes primarily use either HEPA (high efficiency particulate air) or HEPA-type filters, though many models also include ionizers that may be turned on or off separately from the filter. Despite the term "HEPA-type," there is clearly a major difference between true HEPA filters and others. HEPA filters, including those used by Holmes, are much more effective. Holmes claims that its HEPA filters will remove 99.97% of all particles larger than 0.3 microns; whereas the HEPA-type filters will eliminate 99% of all particles larger than 2.0 microns.

A careless customer might only look at the percentages and suppose that they are about the same, but the distinction between 0.3 microns and 2.0 microns is considerable when dealing with indoor air pollution. Many common pollutants fall somewhere in between those two sizes, which means that a HEPA filter will eliminate them, but a HEPA-type filter will likely not.

Also, note that HEPA filters, HEPA-type filters, and ionizers will not effectively deal with gaseous pollutants, only solid particles.

Price Range of Air Purifier Models

Holmes's air purifiers are easy to find and are some of the most affordable on the market. The cheapest and smallest models cost no more than about $20, while the most expensive is only around $100, still relatively low for a purifier. In addition, though, filters need replacing every six to twelve months, adding to the overall cost. One Holmes model, though, does have a permanent filter that does not need to be replaced.

Holmes Air Purifier Models

Allergen Remover for Medium to Large Rooms (HAP726-U): HEPA filter enhanced with baking soda for odor control. Coverage area of 256 square feet.
Allergen Remover for Large Rooms (HAP756-U): HEPA filter enhanced with baking soda. Coverage area of 418 square feet.
Allergen Remover Tower Air (HAP716-U): HEPA filter, ionizer. Coverage area of 150 square feet.
Allergen Remover Tower Air (HAP8615-U): HEPA filter enhanced with baking soda. Coverage area of 116 square feet.
Allergen Remover Mini-Tower (HAP706-U): HEPA filter, ionizer. Coverage area of 80 square feet.
HEPA-type Desktop Air Purifier (HAP2400B-U): HEPA-type filter enhanced with baking soda. Coverage area of 110 square feet.
HEPA-type Tower Air Purifier (HAP424-U): HEPA-type filter enhanced with baking soda, ionizer. Coverage area of 180 square feet.
HEPA-type Mini Tower Air Purifier (HAP412W-TU): HEPA-type filter enhanced with baking soda, ionizer. Coverage area of 120 square feet.
HEPA-type Desktop Air Purifier (HAP242-TU1): HEPA-type filter enhanced with baking soda, ionizer. Coverage area of 109 square feet.
Desktop Air Purifier (HAP9240-U): HEPA-type filter, ionizer. Coverage area of 101 square feet.
Medium Room Air Purifier, White (HAP9424W-U): HEPA-type filter, ionizer. Coverage area of 165 square feet.
Medium Room Air Purifier, Black (HAP9424B-U): HEPA-type filter, ionizer. Coverage area of 165 square feet.
LifeLong HEPA-Type Tower Air Cleaner (HAP1200-U): Permanent HEPA-type filter, ionizer. Coverage area of 169 square feet.
HEPA-type Mini Tower Air Purifier (HAP412W-U): HEPA-type filter enhanced with baking soda, ionizer. Coverage area of 120 square feet.
Odor Grabber with HEPA-type Filter (HAP223-UC2): HEPA-type filter, carbon filter, ionizer. Coverage area of 70 square feet.
Personal Space Ionizing Air Purifier (HAP115Z-U): "Multi-stage filter," ionizer. No coverage area given, but recommended for small rooms.
Pet Products Odor Purifier (AOR1000FC-U): Filter with "odor grabbing crystals." No coverage area given, but recommended for medium-sized rooms.

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