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Replacement carbon filters for Friedrich C90A, C90B, C90, C95


The Friedrich C-90B
is no longer manufactured.
See P600XL
for superior substitute.

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Compare the costs
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Allergies or Asthma?
How does C-90B work?
Frequent Questions
Benefits of the C-90B
C-90B Brochure
More Information

Frequently Asked Questions

How do I know which air cleaners are really effective?
The Clean Air Delivery Rate (CADR) is the standard by which portable room air cleaners are evaluated. You will generally see CADRs expressed for the three most common types of pollutants: TOBACCO SMOKE, DUST and POLLEN. CADR refers to the amount of clean air provided by an air cleaner each minute of operation, measured in cubic feet. The C-90A specs are here. The new and improved C-90A, re-designated the C-90B specs are here.  Read more about CADR and AHAM certification here.

Frequently Asked Questions
  1. What is the difference between the Friedrich C-90B and the Friedrich C-90A?
  2. Is the C-90B effective against mold?
  3. Does the C-90B electronic air cleaner produce any ozone?
  4. How can I buy replacement carbon filters?
  5. How often should I replace the carbon filter?
  6. Do I need to replace my pre-filter?
  7. Where do I get filters for my C-90A, C-90B, or C90?
  8. Where can I download an Owner's Manual?
  9. What are the C-90B's dimensions?
  10. How quiet is the C-90B?
  11. Aren't the filters really expensive?
  12. How large an area will the C-90B handle?
  13. Will the C-90B discolor walls, drapes or furniture?
  14. How do I know which air cleaners are really effective?
  15. How much electricity does the C-90B require?
  16. How do I clean my C-90B?
  17. How do I install a carbon filter on my air cleaner?
  18. Can I use my C-90B with my window open?
  19. Why is my air cleaner making a popping sound?

Worldwide Supplier of Air Purifiers, Air Cleaners, Air Filters, Dust Collectors, & Mist Collectors shipping from North America. 
Many, but not all models are displayed.  Air Purifiers are available with a variety of electrical options to meet the power standards of most countries.

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