Friedrich C90B Air Purifier

Friedrich C90B Air Cleaner


Friedrich C-90B Air Purifier


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Friedrich C90B Air Cleaner

The Friedrich C90B Air Cleaner outperforms 99% of AHAM certified air cleaners at removing tobacco, pollen, and dust. This energy-efficient air purifier features dishwasher-safe, reusable collector plates and an activated carbon filter for removal of odors and fumes. Economical to maintain and run, the Friedrich C90B Air Purifier controls aerosols, pollen, dust, pet dander, and more. Friedrich Efficiency Chart
Friedrich Clean Air Delivery Certification

Friedrich C90B Air Cleaner Product Features

  • Washable Plates and Filters eliminate the need for expensive filter replacements with the Friedrich air purifier! When the electrostatic collector plates become clogged and dirty, just wash them off and put them back. They are dishwasher safe. The pre-filter can also be hand-washed or vacuumed.
  • Friedrich C90B air cleaner is one of the most energy efficient air purifiers on the market. It runs on about the same amount of electricity as a household light bulb. The low energy cost, combined with the cost-efficient reusable collector plates, make this air purifier a bargain to operate.  
  • The Friedrich C90B Electrostatic 4-Stage Process uses electrostatic and carbon filters instead of HEPA filter. It has received high Clean Air Delivery Rates (CADR) from independent laboratory tests by AHAM (Association of Home Appliance Manufacturers). The Friedrich C90B utilizes a 4-stage air purifying process:
  • C-90B Cutaway View
    1) The pre-filter catches the larger particles as air is drawn through the rear grille.
    2) In the ionizing section of the electronic cell, billions of microscopic particles become electrically charged as they pass over a powerful electric field.
    3) The collector plates immediately attract and collect these charged particles.
    4) An activated carbon filter removes most common odors and fumes as air is circulated back into the room.
  • The Activated Carbon Filter dependably absorbs odors, which is why the Friedrich C90B air cleaner is one of the most popular air purifiers for tobacco smoke and odor removal. The carbon filter is the only filter that needs to be changed. Replacing these filters is inexpensive and easy. Simply pull out the old one and slide the new one into the slot.
  • Indicator Light shows you that the air cleaner is working properly.
  • Safety Interlock Switch turns the air cleaner off when the cover is removed.
  • Self-regulating Power Supply for surge protection.
  • Effective for rooms up to 730 square feet.
  • Product Reviews & Questions

    Write A Review | Read all 5 reviews.
      No more sneezing!
    Reviewed by: Suzanne Schumacher from Temecula, California

    I have a piano studio with a resident cat and dog. I had four students that started sneezing and blowing every time they entered my door. I tried Orek, and it didn't help at all. Then I read in Consumer Reports Magazine that the Friedrich C-90B was on the top of the list for efficiency. I gave it a try. It was amazing. Not one sniffle. I used to have to supply kleenex and a trash can! It's clean air for me from now on!
      Best Ever!
    Reviewed by: clean air lover from Salt Lake CIty

    I have owned this for a year and I have run it on the low setting for the entire year nonstop, except to wash the electronic collection grid and replace the filters. It runs quiet and cleans the air like a champ. Coming home to fresh air is so nice. No ozone either!
      Believe me, I'm a smoker
    Reviewed by: Smoker from Florida

    The Friedrich C-90A is the number one, best air purifier. After smoking two or three cigarettes I know a couple of hours later my home won't smell at all!

    Customer Q & A

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    Friedrich C-90A Electrostatic Air Purifier

    I purchased the Friedrich C-90 Air Purifier when I moved in with my roommate who happens to be a smoker. Even though she smokes on the front porch, I still felt like some of the smoke was reaching the inside of the house. I was looking for a solution that did not involve expensive HEPA or Carbon filter changes, so the Friedrich was the perfect solution. I could tell a huge difference in the air within the first hour of operation and it is so easy to maintain. The Friedrich contains a pre-filter, which captures larger particles, electrostatic collector plates, which captures smaller particles, and a carbon filter which helps to remove odors and also absorbs any ozone created by the electrostatic precipitator.

    What I like about the Friedrich C-90A Electrostatic Air Purifier
    • Easy to use and clean (The Electrostatic collector plates can be placed in the dishwasher and the pre-filter can be washed off or vacuumed off)
    • No expensive filters to replace (carbon filter must be replaced every 3 months for $27.99)

    • Comes with a one year warranty

    What I didn't like about the Friedrich C-90A Electrostatic Air Purifier

    • Loud on the highest setting

    • Not very nice to look at

    • Doesn't have casters

    In summary, I give the Friedrich 3 out of 5 stars. I think that the Friedrich is loud compared to a lot of the other air purifiers on the market today. I would recommend this product to anyone who is looking to remove smoke, dust, pollen, or pet dander from the air. The main benefit to the Friedrich is the low maintenance costs.

    Friedrich C90B Air Cleaner Product Specifications

    Recommended For: Bedrooms, offices, nurseries. Allergy and asthma sufferers, smokers, etc who want minimal filter replacement costs.
    Maximum Room Size
    2 air changes per hour
    1460 sq. ft.
    4 air changes per hour 730 sq. ft.
    6 air changes per hour
    490 sq. ft.
    Filter Description: Prefilter
    Electrostatic filter
    Collector Plates
    Carbon Filter
    Prefilter: Yes
    Filter Guarantee: 1 year
    HEPA Filter: No
    Carbon Filter: Yes
    UV Light: No
    Air Intake: Back of unit
    Air Outflow: Front of Unit
    Ozone Emission: Minimal
    Filter Change Indicator Sensors: No
    M.C.S.: No
    Smoke Removal: Yes
    Mold Removal: Yes
    Odor Control: Yes
    Dust Removal: Yes
    Formaldehyde Removal: No
    Second Hand Smoke Removal: Yes
    Ease of Filter Replacement: Easy, slips in and out
    Installation / Expansion Options: No
    Power Cord Length / Type: 5 feet, polarized, three prong plug
    Interface Control Type: 4 push buttons on
    top of unit
    Color Options: Off white, textured
    Dimensions: 19" H x 15"W x 21.5" D
    Weight: 28 lbs (12.7 kg)
    Shipping Weight: 33 lbs (15 kg)
    Housing: ABS Plastic
    Wheels / Casters: No
    Fan Speeds: 3
    CFM of Fan Speeds: Low 220 cfm
    Med 280 cfm
    High 390 cfm
    Warranty: 1 year
    LCD Display: No
    Programmable Timer: No
    Remote Control Included: No
    CADR Ratings from AHAM: Dust 384
    Smoke 326
    Pollen 421
    Approvals: UL, CADR
    30 Day Risk Free Money
    Back Guarantee:
    Free Shipping Included: Yes
    +'s: Quiet, Minimal filter replacement cost
    -'s: Wish it had casters
    Air Purifier Buying Resources

    Friedrich C90B Air Cleaner Additional Resources

    Filter Replacement Program
    Friedrich Air Cleaner Company Information & History
    Get Adobe Reader Free to View PDFs Friedrich C90B User's Manual (PDF)
    Friedrich C90B Air Cleaner FAQ
    Interactive Air Purifier Calculator
    Air Purifier Buying Guide

    Warranty Information

    1 Year Limited Warranty


    Friedrich C-90B Air Purifier (Item#: FR0001) (Discontinued)