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WarmlyYours ClearlyYou Rectangular 30" x 40" Fog Free Mirror Defogger

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✔ Free Returns for 100 Days
✔ No Restocking Fees
✔ Easy Monthly Installments Starting at 0% APR*

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What was once only available in luxury hotels can now be brought right into your home.

With an electric mirror defogger as part of the home, you will no longer have to wipe mirrors after warm showers, and you won’t leave streaks on them as a result. Heated mirrors will give you a fog-free bathroom mirror experience.

Installing anti-fog bathroom mirror defogger systems is a simple and cost-effective way to make your morning preparations easier. It even makes bathroom cleaning more efficient. In addition to our floor-heating products, steam-free mirrors add a touch of comfort to any home. Whether you’re shaving in the shower or removing makeup, you’ll find the mirror anti-fog heating perfect for your needs.

Let the clarity of your bathroom design be reflected with the Clearly You™ Mirror Defogger.

Clearly You™ electric defogging systems transmit gentle warmth across a mirror’s surface to prevent reflection distorting moisture from forming during bathing or showering. Homeowners can shave, apply makeup or add finishing touches to their wardrobe while enjoying the perfect reflective quality of their mirrors. Let WarmlyYours bring out the true beauty and clarity of your bathroom design while eliminating a major source of homeowner frustration.

Previously available only in spas and luxury hotels, homeowners can now enjoy the self-pampering luxury of steam-free mirrors in their master bath with this affordable new system from WarmlyYours. Self-adhesive backing allows direct application to the back of any wall-hung mirror in just minutes. Ease of installation and quality construction make Clearly You™ systems a welcome upgrade to new home construction and remodeling projects.

WarmlyYours mirror defogging systems draw only a minimal amount of energy and operate at a constant, regulated temperature of 104˚ to provide a safe, economical way to keep mirrors fog-free. The defogging system’s gentle warming will not affect a mirror’s reflective coating and can be wired for continuous operation at a cost of just pennies per month. Our mirror defogging systems are backed by a 1-year warranty and WarmlyYours highly recognized lifetime 24/7 technical and customer service support.

Get the big picture! This 30” X 40” rectangular WarmlyYours ClearlyYou™ Mirror Defogger is ideal for keeping large mirrors fog-free, allowing you to enjoy the steamiest showers and baths. By radiating gentle heat across the mirror's surface, WarmlyYours ClearlyYou™ Mirror Defoggers prevent condensation buildup. Featuring self-adhesive backing and pre-attached power leads that connect to your bathroom's 120V lighting circuit, these mirror defoggers are easy to install on any wall-hung mirror. Using only a small amount of electricity, WarmlyYours ClearlyYou™ Mirror Defoggers maintain a safe, constant temperature of 104 degrees to keep your mirror clear. Not suitable for installation in the showers.

WarmlyYours offers a variety of luxury and comfort management products designed for both home and commercial use.

ClearlyYou™ Mirror Defoggers

ClearlyYou™ Mirror Defoggers come ready to install in several shapes and sizes to fit most mirror types. Pre-attached power leads conveniently connect to your bathroom's 120VAC lighting fixture so you can have an easy to control defogger for your bathroom mirror. 

Fog-Free Systems for Many Mirror Types

ClearlyYou™ Mirror Defoggers come ready to install in several shapes and sizes to fit most mirror types. Pre-attached power leads conveniently connect to your bathroom's 120VAC lighting fixture.

Anti-fog bathroom mirrors draw only a minimal amount of energy, which makes them very cost effective. Get fogless shower mirrors, bathroom vanity mirrors, and wall mirrors. They also maintain a constant, regulated temperature of 104 degrees, keeping the glass steam free.

Installation should be done by a licensed professional to ensure that all wiring is in accordance with the National Electric Code. With that being said, installation is relatively simple. First, the professional will mark on the wall the location where the lead wires leave the mirror defogger. Next, they will install an electrical junction box in line with the mirror defogger’s lead wires. Then, they’ll run Romex cable from a nearby junction box to the new box. The closest box is typically the one that supplies power to the lighting fixture above the bathroom vanity. By linking these junction boxes, the mirror defogger will turn on automatically when the bathroom lights are turned on. Finally, they will adhere the mirror defogger to the back of the mirror and connect the lead wires to the Romex cable. 

Mirror defogging systems are not suitable for installation in the shower.

Mirror defoggers can fit mirrors of different sizes and shapes.


Product Image


Circular 15" x 15"
20" x 20"
25" x 25"
Oval 18" x 26"
24" x 32"
Rectangular 12" x 18"
18" x 24"
24" x 32"
30" x 40"

How Fog-Proof Mirror Systems Work

ClearlyYou™ Mirror Defoggers transmit gentle warmth across the mirror's surface. This prevents the steam's moisture from collecting on the colder mirror surface while you bathe or shower. Self-adhesive backing allows easy application to any wall-hung mirror in just minutes. With the ClearlyYou™ system installed in your bathroom, your mirrors won't become an inconvenience as the room steams up.

What's Included

  • Mirror Defogger

Not Included

  • Mirror


 Saves Energy

WarmlyYours mirror defoggers have one of the highest efficiency rates that reduces heating costs.


cULus certified.

 24/7 Installation Support

We're here to answer your questions every day – year round – round the clock.

 Other Features

  • Self-adhesive backing allows direct application to the back of any wall-hung mirror in just minutes.
  • Connect to your bathroom's 120V lighting circuit. 
  • ClearlyYou™ Mirror Defoggers are available in a variety of shapes and sizes
  • Wafer-Thin System Installs Discreetly Behind Mirror
  • 104˚ Operating Temperature Safe For All Mirrors


Amps 1.3 A
Ohms 96 Ohm
Voltage 120 VAC
Watts 150 W


SKU FFM-3040
UPC (GTIN-12) 881308034801

Product Dimensions

Coverage 8 sqft
Length 3′4″
Size (Overall) 30" x 40"
Thickness 0.02″
Weight 1.3 lbs
Width 2′6″


Shape Rectangular


BTU Per Hour 512

Heat Outputs

Regulated Heat 104 F / 40 C


 Backing Self-adhesive backing allows direct application to the back of any wall-hung mirror in just minutes

Shipping Dimensions

 Shipping Width 6"
Shipping Length 40"
Shipping Height 6"
Shipping Weight 2 lbs


Warranty / Certifications

1-year warranty against defects in materials and workmanship.

WarmlyYours Mirror Defogger (“the Product”) to be free from defects in materials and workmanship for 1 year from the date of sale, provided that the Product is installed in accordance with the accompanying Instructions and Operation Manual, any special written design or installation guidelines provided by WarmlyYours, the National Electrical Code (NEC), and all applicable local building and electrical codes. Any suspected defect must be reported by registered letter immediately upon discovery. The determination of the existence of such a defect will be made by Inc. or its authorized representative only. Upon notification of an actual or possible problem, WarmlyYours will issue an Authorization to Proceed under the terms of the Limited Warranty. This warranty is null and void if the product is improperly used, operated, or installed, or if the owner or his representative attempts to repair the Product without receiving authorization. Under this Limited Warranty, WarmlyYours will provide the following remedy: If the product is determined to be defective in materials and workmanship, and has not been damaged as a result of misuse, misapplication, or improper installation, Inc. will refund the original purchase price or replace the Product. 

Disclaims Any Warranty Not Provided Herein, Including Any Implied Warranty of Merchantability or Implied Warranty of Fitness for a Particular Purpose. Further Disclaims Any Responsibility for Special, Indirect, Secondary, Incidental, or Consequential Damages Arising from Ownership or Use of This Product, Including Inconvenience or Loss of Use. There Are No Warranties Which Extend beyond the Face of the Document. No Agent Or Representative of Warmlyyours Has Any Authority to Extend or Modify This Warranty Unless Such Extension Or Modification Is in Writing by a Corporate Officer. 

Approvals cULus listed
Warranty 1-year warranty against defects in materials and workmanship

About WarmlyYours

Frequently the company is asked how WarmlyYours chose its company name, WarmlyYours. When WarmlyYours began as an electric radiant heating products business over 20 years ago, WarmlyYours wanted a name that would embody the very essence of the business philosophy – treat the customers well and offer the very best floor warming systems and services in the industry. And above all else, always deliver on those promises to you.

The name WarmlyYours reflects a deep, personal commitment to providing customers with the exceptional customer service that they deserve. WarmlyYours welcome any questions and relish the opportunity to provide customers with prompt and friendly assistance. Listening to feedback from thousands of homeowners and installers, WarmlyYours continues to improve on everything to better serve the customers. As a result, WarmlyYours have expanded its portfolio to include other radiant heating products — such as towel warmers and radiant panel heaters — to bring comfort and affordable luxury to all areas of the home.

There are many types of home heating systems, but electric floor heating is an efficient solution that can improve your bathroom, kitchen, or other rooms by bringing in a floor warming system that the family will enjoy. As a premier type of radiant heating system, there will be no more cold floors to endure when the weather turns cool. WarmlyYours floor warming systems can benefit all who enter your home, retail location, or office space, making the environment more comfortable. Affordable luxury is within reach with electric radiant heating systems that deliver comfort throughout the seasons.

Chilly bathroom floors are a thing of the past with electric radiant heating. Whether you have wood floors or tiles, the moment you step on the floor, you will feel the glow of energy-efficient warmth. Moreover, allergies might lessen because there is no forced air to blow through the room. Radiant floor warming systems can be installed under any type of floor. There is no maintenance involved, and a single room or a whole house will benefit from this comfortable home heating option. Ensure that your space is happy and warm with floor warming systems that are made for luxury.

You can check out all of the WarmlyYours products here.

Core Values

Be Radiant

What We Stand For

WarmlyYours believe that the word, "radiant," goes far beyond their heating products, it resonates with WarmlyYours company culture and to the very depths of who WarmlyYours are. WarmlyYours believe that "radiant" is a way of life – a definition of the living brand. WarmlyYours brand is not simply a logo or a product, but it's the reality.

When they say, BE RADIANT at WarmlyYours, it's not just a thought or a suggestion – but rather, WarmlyYours take it as a commandment, a charge, a deeper calling to be their best selves, while positively encouraging their peers to be the same.

So, what does it mean to BE RADIANT as a WarmlyYours employee? To BE RADIANT means to let the inspiration drive them to take projects to the next level; to achieve excellence through WarmlyYous "blood, sweat, and tears;" to create a full radiant experience for the customer; to go above and beyond for WarmlyYours customers; to seek to professionally and personally improve WarmlyYours to be compelled and propelled by new ideas and innovations.

As the living, breathing brand of WarmlyYours –WarmlyYours call you forward to...

  • BE Connected: Engage and serve with each other, the community, and the customers.

  • BE Present: Open and accountable to yourself, to one other, and to the customers.

  • BE Innovative: Always looking for the next bigger and better advancement in technology, service, and development.

  • RADIATE Positivity: Be a positive force and influence with all whom they engage in life and work.

  • RADIATE Warmth: Seek to communicate warmth and genuine care for others.

  • RADIATE Passion: Exude passion about the job, the products you sell, and the people “doing life” with - recognize and show appreciation to each other.

BE WARMLYYOURS. BE RADIANT. YOU are the living brand.





    Sell Sheets


    Frequently Asked Questions

    How does a mirror defogger work?


    An ultra thin electric heating mat is attached to the back of the mirror, which transmits gentle warmth across a mirror’s surface to prevent moisture from condensing on the mirror's surface during a shower or bath.
    What is the length of the cold lead for a mirror defogger?


    A mirror defogger cold lead is 36 inches long.The voltage for all models is 120 Volts.
    Can I wire it to the lighting circuit?

    The expected LED lifetime is about 50,000 hours.
    Can I use multiple defoggers on the same mirror?


    Yes, but please make sure not to overlap multiple heating elements over each other.
    What is the best way to keep bathroom mirrors from fogging up?


    Installing a heating system behind your mirror is the most reliable way to avoid a foggy mirror. Typically, mirrors fog up because they are much cooler than the steam in a bathroom after a shower or bath. The cool surface of the mirror causes the moisture in the steam to condensate in the form of fog. A heated mirror will prevent this condensation by being as warm, or warmer, than the steam. 
    How do I glue a mirror to the wall and still have a defogger on it?


    If you're gluing a mirror to a wall, simply apply adhesive to the mirror backing, not covered with the mirror defogger.
    How quickly can a mirror defogger defog a mirror?


    The mirror defogger will begin to defog the mirror within 5 minutes of operation.
    Can a mirror defogger be controlled with a low-voltage dimmer switch?


    The mirror defoggers are not designed for use with dimmer switches or with any low-voltage control. 
    How thick is the box on the back of the heating mat? Does it prevent the mirror from lying flat or flush against the wall?


    The electrical junction box should be installed inline with the Mirror Defogger’s lead wires and box. The box at the back of the defogger is meant to be located over the electrical box in the wall. This way it will be in the electrical box and not interfere with the defogger being flush with the mirror and the wall. The location where the wires leave must be entirely within the area of the new electrical junction box.
    Can I put a mirror defogger in my shower?


    No. Mirror defoggers are not rated to be installed in wet locations like a shower enclosure.
    Can you attach it to the back of a medicine cabinet door?


    No. Mirror defoggers are designed to be mounted and wired to a fixed, wall-mounted mirror.
    Can I trim the mirror defogger?


    No. Mirror defoggers can't be trimmed and the proper size needs to be selected to fit on an open, unobstructed area on the back of the mirror.
    Do radiant heating products have polarity?


    Electric-resistance heating cables and systems have no polarity. This includes all current WarmlyYours heating elements.