Activated Carbon Filters


The air in your home is as important as ever. We offer activated carbon filters that fit directly into your antimicrobial-protected filter (included), and help protect against fumes, gases, odors, volatile organic compounds (VOCs), and similar pollutants. We recommend changing them every three months. Annual filter pack (4 filters).

Annual auto-refills

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Terms of Sale apply. Taxes and shipping calculated at checkout. *If auto-refills selected, billing of $48/year occurs when annual pack (4 filters) ships 3mo. after purchase, then annually; cancel any time.

Add some breeze


Step 1 - Window type

We need to make sure your window can hold an AC unit safely. It must be a single- or double-hung window (it should slide up and down) and be in good condition. Does this describe your window?
Step 1 of 3

Step 2 - Window Size

Great! Let’s figure out window size. The Windmill AC is designed to fit windows with a width of 23-37 inches and a vertical opening of at least 14 inches. Sounds accurate?
Step 2 of 3

Step 3 - Space Size

OK, what's the approximate size of your space? Best guess is fine!
(100-250 Square ft.)
(250-350 Square ft.)
(350+ Square ft.)
Step 3 of 3

And here's the Windmill for you! We wish you many breezy days.