The Friedrich C-90B

Frequently Asked Questions

Can I use my C-90B with my window open?
While the C-90B has three fan speeds and can effectively clean a large area, the product is designed to clean the air in your home and not air coming from outside of your home.

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Frequently Asked Questions

What is the difference between the Friedrich C-90B and the Friedrich C-90A? Is the C-90B effective against mold? Does the C-90B electronic air cleaner produce any ozone? How can I buy replacement carbon filters? How often should I replace the carbon filter? Do I need to replace my pre-filter? Where do I get filters for my C-90A, C-90B, or C90? Where can I download an Owner's Manual? What are the C-90B's dimensions? How quiet is the C-90B? Aren't the filters really expensive? How large an area will the C-90B handle? Will the C-90B discolor walls, drapes or furniture? How do I know which air cleaners are really effective? How much electricity does the C-90B require? How do I clean my C-90B? How do I install a carbon filter on my air cleaner? Can I use my C-90B with my window open? 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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