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<p><style type="text/css" id="isPasted"></style><span data-sheets-root="1">We recommend replacing your filter every 6 months for optimal air quality.</span></p>

We recommend replacing your filter every 6 months for optimal air quality.

How often should I change my filter?

Windmill Purifier

Will the Windmill AC work in my window? Can I use it through the wall?

Which app version do I need to use?

What are the technical specs? Such as: Dimensions, Weight, Decibels...

When exactly will my order arrive and how much is shipping?

Plexiglass Installation

What makes Windmill unique?

I'm having trouble pairing (or re-pairing) my AC to the app copy

Top AC FAQs

How do I install my Windmill AC?

Do I need a support bracket?

What is the red circle on the display?

Can I control the Windmill AC remotely?

Does the Windmill AC come with a warranty?

How do I clean and maintain my AC?

How do I clean and replace the filters?

How do I insert the activated carbon filter?

How do I install the AC in a storm window?

How do I register my AC for the included warranty?

I can't find the installation guide and owner's manual. Where are the links?

I'm having trouble installing the cosmetic side panels. What do I do?

What are activated carbon filter auto-refills?

Where is your end user agreement for the app?

Connecting to Alexa

Connecting to Google Home

How to use Alexa to control your Windmill AC

How to use Google Home to control your Windmill AC

Product - AC

Do I need to pay taxes on my order?

Can I cancel an order after it's been placed?

How can I track my order?

I placed my order but didn't receive my confirmation email. What do I do?

Orders

Where does Windmill ship?

How much does shipping cost?

What is your return policy?

Do you deliver on Saturdays and Sundays?

Shipping & Returns

Is the Windmill AC more eco-friendly?

How can I use my AC more efficiently and save on my energy bill?

How does the carbon offset program work?

What is R32?

What if I need to reset my utility login to sign up for Eco Rewards?

What is Windmill's Eco Rewards Program?

The Environment - AC

What is Mulberry?

What is included in the Mulberry Protection Plan?

Do I qualify for Mulberry Protection Plan options?

How do I purchase a protection plan?

Mulberry - AC

What are the tech specs?

What square footage is the Windmill fan best for?

Can it be mounted on the wall?

Can I adjust the height of the fan?

Can I use my Windmill fan outdoors?

Does the Windmill fan oscillate?

What makes the Windmill fan unique?

Where is the Fan Manual?

Tips for getting the most out of your Windmill Fan:

Top Fan FAQs

How does the fan help lower my energy use?

What makes the Windmill fan more eco friendly?

What does it mean that your fan has internal parts made with 50% recycled materials?

The Environment - Fan

What outlet does the Windmill Fan require?

How many fan speeds are there?

How do I clean the fan?

How do I operate the fan?

How do I connect to the app?

What is the warranty for the Windmill Fan?

Product - Fan

What is an air filter?

Do I need an air filter?

How does an air filter work?

What are the benefits of an air filter?

Why do I need to change my air filter?

When should I change my air filter?

Where is the air filter in my home?

Can I use a HEPA filter in my furnace?

What is MERV? What about MFR and FPR?

How does where you live affect what air filter I should use?

Why are there different size air filters?

How do I know my air filter size?

What is the difference between fiberglass and pleated air filters?

What is the difference between an Air Filter and an Air Purifier?

HVAC Filters 101

Do I need to be concerned about airflow?

Should I layer my 1" filters?

What is the difference between the Windmill filters?

Will Windmill Filters help my allergies?

Are Windmill Filters good for pet owners?

Which Windmill filter is best for me?

What particles do Windmill filters capture?

What sizes do you offer?

Why does Windmill ship in bulk?

Can I buy just 1 filter?

How does the quiz work?

Are Windmill Filters recyclable?

How do I store my filters?

Can I wash and reuse my filters?

How do I dispose of my filters?

How do I change/install my air filter?

What are the product details?

What makes Windmill filters unique?

Where are Windmill Filters made?

How do I sign up for text reminders?

How do text reminders work?

Product - HVAC Filters

Where can I manage my account and auto-refills?

What is your cancellation policy?

What if I bought the wrong size? What is your exchange policy?

How do I contact customer support?

How do your annual auto-refills work?

Orders - HVAC

Environment - HVAC

How do I replace my filter?

What makes Windmill purifiers different from other purifiers?

Does the Windmill purifier require a wifi connection to operate?

Can the Windmill purifiers filter out smells and odors?

What filters do I need to use with the Windmill purifier?

Does air quality affect asthma and allergies?

Why do I need a purifier?

Is the Windmill purifier loud?

What size room is the Windmill purifier best for?

Where should I place my purifier?

What is a 3-in-1 HEPA filter?

What is laser precision refer to?

What is CADR?

What special smart features does the Windmill purifier have?

What is AQI?

How fast can the Windmill purifier clean my air?

How does the Windmill purifier work?

Does the Windmill purifier remove viruses and bacteria?

Is the Windmill air purifier effective against allergens like dust, pollen, and pet dander?

How often should I change my filter?Updated 4 months ago