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Friedrich C-90B Electrostatic Air Cleaner |
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This award-winning air purifier never needs HEPA filter replacements, which allows you to filter your air at the lowest possible cost. It is excellent at particle and smoke removal. One prefilter and one carbon filter included.
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Item#: fr491
Bulk Purchase Price: Buy 2 or More for $448.00 each.
Price: $469.00
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Overview & Highlights
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The award-wining C-90B from Friedrich is an excellent choice for overall air purification. This updated unit features Friedrich’s quality workmanship but with improved internal components to deliver even greater CADR rates and to cover even larger areas more effectively. This unit:
- 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 C-90B offers unbeatable value because there are no HEPA filter replacements (which can cost from $80-$100). The electric plates on the unit simply need to be washed to keep the air cleaner operating at optimum capacity. Cleaning maintenance (once a week) 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 quieter 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 cost to operate per year of only $50-$60.
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3-Stage Filtration = Outstanding Efficiency
The efficiency of the C-90B comes from the unit’s use of 3 separate filter stages. Air first travels in through a prefilter that captures the largest particles; next, it moves through an electrostatically charged main filter cartridge, and finally through a carbon filter that eliminates gases and odors. The system:
- Has a 3-speed fan to quickly eliminate odors, dust, pollen, tobacco smoke, and other airborne pollutants, creating a healthier environment.
- Uses inexpensive carbon filters for additional odor filtration.
The Friedrich C-90B uses a 4-step process (pictured below) to filter the air particles, odors, and fumes. The filtering process creates fresh, clean air to reduce breathing problems for those with allergies or respiratory sensitivity. The filter works as follows:
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- The PRE-FILTER catches the larger particles as air in the room is drawn through the rear grille.
- In the IONIZING 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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Improved 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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