How Big of a Room Can the Cannon Clean?

यह पेज हिंदी में उपलब्ध नहीं है| अंग्रेजी में देखें| For the sake of viewer convenience, the content is shown below in this site default language. You may click one of the links to switch the site language to another available language. After I tested every fan in China I could find with a flat […]

Read More

Test: Do you have to run your purifier all day?

यह पेज हिंदी में उपलब्ध नहीं है| अंग्रेजी में देखें| For the sake of viewer convenience, the content is shown below in this site default language. You may click one of the links to switch the site language to another available language. Some purifier companies recommend running your purifier all day. But is that really […]

Read More

Does Chinese New Year Affect Inside Air?

यह पेज हिंदी में उपलब्ध नहीं है| अंग्रेजी में देखें| For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. I’ve posted data before showing that outdoor air quality is strongly correlated with indoor particle counts (r = .71), but Chinese New […]

Read More

The Really Small Stuff

यह पेज हिंदी में उपलब्ध नहीं है| अंग्रेजी में देखें| For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. To test how effective the DIY filter is, I’ve been posting lots of data on 2.5 micron particles. But my […]

Read More

How Safe is Indoor Air?

यह पेज हिंदी में उपलब्ध नहीं है| अंग्रेजी में देखें| For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. I recently did some research on whether indoor air is as bad as outdoor air. Before that, I had a conversation […]

Read More