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Friedrich C-90B Electrostatic Air Cleaner |
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This award-winning air purifier never needs HEPA filter replacements, enabling you to filter your air at the lowest possible cost. The Friedrich C-90B is excellent for both particle and smoke removal, and includes one prefilter and one carbon filter.
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Item#: fr491
Bulk Purchase Price: Buy 2 or More for $429.00 each.
Price: $439.00
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Overview & Highlights
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The award-winning C-90B from Friedrich is an excellent choice for overall air purification. This updated unit features Friedrich’s quality workmanship and improved internal components that deliver greater CADR rates and cover larger areas more effectively. The Friedrich C-90B:
- Safely and effectively cleans your air for a healthier and fresher environment.
- Thoroughly removes tobacco smoke without costly filter replacements.
- Significantly reduces allergy and asthma symptoms.
- Is a cost-effective air purification system with a washable pre-filter and main filter.
- Achieved one of the highest CADR (Clean Air Delivery Rating) in an independent laboratory test.
- Read our detailed review of the Friedrich C-90
- For additional information, see our Frequently Asked Questions about the Friedrich C-90B
Long-Term Value
The Friedrich C-90B offers unbeatable value because there are no HEPA filter replacements (which can cost from $80-$100). The electric plates on the unit need a simple wash to keep the air cleaner operating at optimum capacity. Weekly maintenance will ensure the longevity of this high-quality unit. This unit has:
- A washable pre-filter.
- No HEPA filters to replace.
- An energy-efficient fan that doesn't use excessive energy.
- A quiet fan because it is not overpowered like most traditional fans that have to push air through a thick material filter.
- Dishwasher safe electric plates.
- An estimated yearly cost to operate of only $50-$60.
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3-Stage Filtration = Outstanding Efficiency
The efficiency of the C-90B comes from the unit’s 3 filter stages. First, air travels in through a prefilter that captures the largest particles. Next, air moves through an electrostatically charged main filter cartridge. Finally, air moves through a carbon filter to eliminates gases and odors. The system:
- Has a 3-speed fan to quickly eliminate odors, dust, pollen, tobacco smoke, and other airborne pollutants.
- Uses inexpensive carbon filters for additional odor filtration.
The Friedrich C-90B uses a 4-step process (pictured below) to filter air particles, odors, and fumes. The filtering process creates fresher, cleaner air to reduce breathing problems for those with allergies or respiratory sensitivity. The filter works as follows:
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- The prefilter catches the larger particles as air in the room is drawn through the rear grille.
- In the ioinizing section of the electronic cell, billions of microscopic particles become electrically charged as they pass through a powerful electric field.
- Collector plates immediately attract these charged particles.
- Finally, an activated carbon filter removes common odors and fumes as the clean air is circulated back into the room.
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The C-90B also offers mproved performance over the discontinued Friedrich C-90A model:
| C-90B vs. C-90A |
| Square Footage Served: |
506 |
465 |
| CADR - Pollen: |
421 |
370 |
| CADR - Tobacco Smoke: |
326 |
300 |
| CADR - Dust: |
384 |
375 |
| CADR (Clean Air Delivery Rate) is determined by the Association of Home Appliance Manufacturers (AHAM). |
| Product Specifications |
- HEPA Filter : No
- Electrostatic Filter : Yes
- Other Particle Filter : Yes
- Carbon Filter : Yes
- Washable Filter : Yes: Electrostatic Plates
- Number of Filters to Change : 2
- Average Frequency of Filter Changes : Carbon Filter: 6 months; Electrostatic Plates need regular cleaning
- Max Room Size (sq ft) : 506 sq ft
- Dimensions (WxDxH) : 19" H x 15" W x 21.5" D
- Weight : 28 lbs
- Casters : No
- Number of Fan Speeds : 3
- Amount of Air Moved (Max CFM) : Speed 1: 220 CFM; Speed 2: 280 CFM; Speed 3: 390 CFM
- Clean Air Delivery Rate (CADR) : Dust: 384; Smoke: 326; Pollen: 421
- Remote Control : No
- Filter Change Indicator : No
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What is in the box |
Unit
Prefilter
Carbon Filter
3-Prong Polarized Power Cord
Product Literature
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Manufacturer Warranty |
1 Year
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| Reference Materials |
Friedrich C-90B Operating Guide (Adobe PDF)
Operating guide for unit
Friedrich C-90B Sales Brochure (Adobe PDF)
Sales brochure with detailed information about this unit
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