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Why Does Bathroom Humidity Happen?

Why Does Bathroom Humidity Happen?

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After a long day, you want to relax in that perfect humidity bath. The last thing you want is a scary bit of mould in your relaxing environment. There is something you can do to make sure that does not happen! Every bathroom will create humidity when you take a shower, run a bath, or use the sink. Keeping your bathroom at a healthy humidity and temperature will ensure that it is free from condensation which can lead to serious problems like mould and mildew. It is a great idea to be knowledgeable about the proper amount of humidity in the bathroom and what you can do each day to make sure the air flow, vents, and temperature are all in great working order.

Yes we did mention cockroaches! You may also find that if your bathroom has too much moisture it attracts more of our scurrying little enemies, as they just love water. First of all we recommend sealing any visible openings. That means gaps around your doorframes, cracks in the windowsill and small holes in the floors. Even a leaky tap or loose pipes can be an entry point for roaches. Time to tighten up!

That’s why baits are the best. They work in two ways, they take out the first roach that eats it (but here’s the important bit) they die back in the nest infecting the hordes that are just waiting to attack. It’s the secondary kill that gets you the control and your bathroom back.

We recommend Combat and and roach baits and gels. They eradicate infestations directly at their nest by disguising the poison as food, which kills roaches and any ants in a Domino-Effect.

What is the right level of humidity in the bathroom?

Humidity in the bathroom is not bad or good. It is a natural occurrence with hot water. What we do strive for is to have the optimal humidity levels at all times for our health and the health of the environment and home. Humidity levels should range between 30 and 50 percent, with the ideal hovering at 45 percent. Anything lower can irritate your eyes, nose, and throat while levels above 50 percent can potentially fuel the growth of harmful bacteria, dust mites and mould. Using a digital or analog hygrometer to measure humidity levels can help you assess and improve the humidity in the bathroom.

Controlling the temperature and humidity in the bathroom

You can easily create this healthy balance. Here are a few easy tips to put in place now.


    Be sure you have a well working bathroom fan and leave it on for 20-30 minutes after your shower or bath. Air circulation is #1 to regulate the humidity. Have the filters checked on a regular basis so they do not get blocked.


    Your bathtub, bathroom walls, and shower curtain will be covered in moisture droplets once you’ve finished. Wipe away any build-up of moisture and direct it down the drain using a squeegee. Mop up any puddles or droplets on the floor for the same reason.


    Have a heating lamp installed to help regulate the temperature. In winter, use a small floor heater – just be sure that your wiring is nowhere near any water areas. Keeping the room warm for 20 minutes after your bath or shower will help keep the condensation off the walls.


    If you can, leave the bathroom door open or at least cracked open a bit to let the steam out. This should prevent a lot of condensation and assist in lowering the bathroom humidity. In addition, you can open a window to allow the bathroom humidity to escape.


    Research and possibly purchase a dehumidifier. However, this may work as a temporary solution and may require you to fix larger issues with the bathroom or house itself. Consult with a professional to assess any mould issues, water leaks under the house or any other structural issues.

We hope you enjoy your perfect humidity bathroom and our information about controlling humidity in the bathroom and those pesky cockroaches that come along for the ride has enlightened you. Don’t forget to check out our other household tips such as the ideal humidity at home , working from home , and how to keep a house warm without central heating. Make sure you register with Ask Team Clean to get more advice and rewards sent to you!