Frequently asked questions

Here are the answers to questions that you may have about Blueair filters.

• What type of Blueair filter do I need? >

• What are Blueair filters made of? > 

• Can Blueair systems remove indoor gases? >

• Can Blueair systems trap bacteria? > 

• How often should I change the filter? >

• What does HEPA stand for? >

• How does HEPASilent technology achieve such high levels of filtration? >
• How small is a micron and why does it matter? >

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