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6 Ways to Keep a Bathroom Mirror From Fogging Up

Fogged-up bathroom mirrors – the ultimate enemy of every morning routine!

Wasting precious time wiping away condensation just to shave or apply makeup is enough to drive anyone crazy.

But what if there was a better way?

Learn how to keep a bathroom mirror from fogging up with ingenious, yet simple, techniques that will revolutionize your mornings and leave you wondering how you ever managed without them.

keep a bathroom mirror fog-free

Why Do Bathroom Mirrors Fog Up?

In essence, your foggy mirror is a battle between hot, humid air and a cool surface.

Here’s what’s happening when you take a steamy shower:

  1. During your hot shower, the water heats up, transforming some of it into water vapor, which is essentially invisible gas.

    This hot, humid air fills the bathroom.

  1. The mirror in your bathroom, however, is much cooler than the surrounding air, especially compared to the hot steam.

    This temperature difference creates a pressure imbalance.

  1. As the hot, humid air comes into contact with the cooler mirror surface, it rapidly cools down.

    This cooling process causes the water vapor to condense – meaning it transforms back from a gas into a liquid.

    The result?

    Millions of tiny water droplets clinging to the mirror’s surface, creating that foggy appearance.

How to Prevent a Bathroom Mirror From Fogging Up

Here are six proven ways to keep your bathroom mirror fog-free.

Opening your windows and door is an easy and free way to lower your room’s temperature.

This will stop water vapor from forming and making your mirror appear blurry.

Source: The Window Shutter Company

Note, however, that this method is not advisable during winter. Your health and safety are of utmost importance.

These products can help keep your bathroom mirror fog-free.

Even though you might have to use these constantly to defog your mirror, they work like magic.


To avoid a Halloween experience in your bathroom, grab a bar of soap and run it over the mirror gently, making sure to cover the entire surface.

You can try this out with liquid soap and sure to get a good result.

If you are worried about how your mirror will look after, you can use clean water to wash the soap away, even after taking a steamy shower.



Shampoos are perfect when it comes to defogging a mirror.

Pour a good amount of shampoo on a piece of material and wipe it across the areas of your mirror you want fog-free.

Make sure you wipe the solution thoroughly to avoid a blurry-looking mirror.

This same technique can be used with toothpaste, laundry detergents, and shaving cream.

Just grab the one closest to you!


Perhaps you just bought a bottle of vinegar for your weight loss plan.

How about we get two birds with one stone?

With a cup of water and a cup of vinegar, you are good to go.

Stir the solution properly until you are satisfied that it is well blended.

Pour into an empty spray bottle and spray the solution directly on your mirror.

Use a piece of clean material to wipe the mirror.

Source: REUTER

For better results, add a little bit of dish soap to your solution.

This technique could last a few days, so make sure to re-apply when necessary, preferably after a steamy shower.

Blow Dryer

This is yet another valuable household item that can do the trick.

Just plug your hairdryer and remove the fog from your mirror.

Well, provided you have a socket close to the mirror.

Your mirror becomes blurry and foggy when water vapor from a steamy shower condenses and settles on your mirror.

To prevent this, run a cold bath for a few minutes before switching to hot.

This helps keep the surrounding area cool, such that when you switch to hot, the fog does not form immediately.

You should be aware that the fog will form on your mirror after a long hot bath.

The success of this technique relies on the size of your bathroom and the length of your shower.

The larger the bathroom, the longer it takes to fog up.

The easiest, quickest and fastest way to avoid your mirror from fogging is to drape a towel or piece of cloth over it.

You can try sticking it to the wall with tape or thumbtacks.

I would personally opt for a tape as a thumbtack may leave tiny holes on my wall.

We wouldn’t want that, would we?

Looking for a more unconventional solution, you can have your pick from products specifically made to keep fog away from your bathroom mirror.

  • A good specialty product is Glycerin, and it is readily available at your local pharmacy.

    Diluted with water and used to wipe your mirrors to keep them fog-free.

    It is non-toxic, making it an excellent choice for homes with kids.
  • Have a Rain-X or DEBATLOG in your car?

    Then you are in luck.

    Apply carefully on your bathroom mirror and have a fog-free mirror for up to a month!

Are you looking for a more long-term solution?

Try the following technique.

If you do not like mixing concoctions every few days, why not opt for a permanent solution?

Source: Crosley Furniture

Your best bet is to get an anti-fog mirror and enjoy heated showers all year long.

There are different options you can pick from:

  • Your go-to choice could be an anti-fog mirror with a chemical-based coating.

    Installing these mirrors is very simple, but remember to take them down when not in use to ensure longevity.

    Overexposure may cause them to lose their coating quickly.
  • Another great pick is a heated mirror.

    Yes, you heard me right.

    Reservoirs are placed at the back of the mirror to mimic the water temperature.

    They are a great choice because they last longer than other options.

Equipped with this new piece of information, we can guarantee that you would have a crystal clear mirror when you have a steamy shower.

Mandy Phillips

As a frequent contributor to top US magazines and publications in the home improvement niche, Mandy has been known for sharing her expertise on how to clean, organize, and decorate bathrooms.

Additionally, Mandy has immense experience offering lifestyle tips and tricks to her readers.

About Loo Academy

At Loo Academy, our mission is to offer trusted advice for everything related to bathrooms (design ideas, plumbing advice, showering & bathing tips, remodeling guides, and more) — a place where we all spend a great deal of time.

We work closely with qualified experts and follow a thorough editing and fact-checking process before publishing content.

Published content is regularly fact-checked and revised so that the information we provide is accurate and up-to-date.

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