Why you should always close the toilet lid?

Author: Hunter Gerhold  |  Last update: Saturday, January 10, 2026

Viral aerosols from toilet flushing pose a possible route of pathogen transmission. Toilet lid closure prior to flushing is believed to mitigate cross-contamination.

Should the toilet lid always be closed?

When not in use, it is generally recommended to keep the toilet lid closed. Closing the lid helps prevent the spread of germs and bacteria that can be released into the air when the toilet is flushed. This is especially important in shared spaces or if someone in the household is sick.

Do toilets flush better with the lid closed?

When a toilet was flushed lid up, bacteria were found up to 25 cm above the seat. After 60 minutes, the number of bacteria decreased eightfold, and at 90 minutes, a further threefold. Lid down, none of the bacteria was found in the air above the seat after flushing.

Is it bad manners to leave the toilet lid up?

According to most toilet etiquette, leaving the toilet seat open after use is considered rude. as the polite practice is to close the seat and lid after using the toilet. Viral aerosols from toilet flushing pose a possible route of pathogen transmission.

Does closing the toilet lid help with smell?

Yes, closing the toilet lid can help reduce odors in a bathroom. When the lid is closed, it can contain smells that may otherwise escape into the air. This is especially true after flushing, as flushing can aerosolize bacteria and odors, potentially spreading them into the surrounding area.

Flushing The Toilet With The Lid Up 💦

Does closing the toilet lid cause mold?

And you don't have to have a water damage in your home for this to occur. That's because there is always water in your toilet bowl and it is easy for mold to develop. Also the toilet lid is usually closed keeping the bowl in the dark. Mold likes water, dark spaces, and organic materials.

How do you keep the toilet bowl smelling fresh?

Five Ways To Keep Your Toilet Smelling Fresh
  1. Using Essential Oils. Essential oils are a natural and effective way to keep your toilet smelling fresh and inviting. ...
  2. Try a Homemade Toilet Cleaner. This DIY Toilet Cleaner is a game-changer. ...
  3. Use an Odour Eliminating Powder. ...
  4. Use a Room Freshening Spray. ...
  5. Using Wax Melts.

Should you close the toilet lid after peeing?

Scientists have weighed in with their own woeful conclusion: Neither is a solution to stopping the spread of dangerous germs. Microbiologist Charles Gerba and his research team at the University of Arizona determined there's little difference whether you leave the lid up or down.

Why do people want the toilet lid down?

every time! The lid was designed to keep germs where they belong, in the bowl and down the drain! If you leave the lid up when you flush, those germs can float around your bathroom, landing on any available surface, including towels, hairbrushes or even toothbrushes. Nobody wants that!

Why you shouldn't sit on the toilet too long?

Turns out extended toilet sitting can lead to hemorrhoids, weakened pelvic muscles, and an increased risk of rectal prolapse.

Should you leave the toilet seat up or down?

While it was also found to make the droplets larger and more concentrated with bacteria, the broad consensus among scientists is that it's more hygienic to flush with the lid down.

Should you close the toilet lid before flushing Mythbusters?

Though it's been said that closing the lid will stop tiny fecal particles from spreading across your bathroom, a new peer-reviewed study published in the American Journal of Infection Control is now claiming the positioning of a toilet's lid really doesn't make much difference at all.

Is it bad to flush the toilet with the lid open?

With results showing that closing toilet lids has no meaningful impact on preventing the spread of viral particles, our study highlights the importance of regular disinfection of toilets to reduce contamination and prevent the spread of viruses.

What is the purpose of the toilet lid?

Hygiene: The primary purpose of a toilet seat lid is to cover the toilet bowl when it's not in use. This helps prevent the spread of germs, bacteria, and Odors from the toilet bowl into the bathroom environment. It can also protect against accidental splashes when flushing.

Why should toilet doors be closed?

As a bonus, this simple habit reduces moisture and humidity in the bathroom, keeping mold and mildew to a minimum. Similar to the seat cover, the bathroom door should also be closed, according to Chinese discipline this prevents the "loss" of qi energy. If possible, it is better to visually hide the toilet.

Is it bad to not close the toilet lid?

Viral aerosols from toilet flushing pose a possible route of pathogen transmission. Toilet lid closure prior to flushing is believed to mitigate cross-contamination. We show toilet lid closure prior to flushing does not mitigate cross-contamination.

Is it proper etiquette to close the toilet lid?

But there's one thing that not everyone may be on the same page about—whether you should close the lid before flushing the toilet. As it turns out, research suggests that we definitely should be closing the lid before every flush, no matter how clean your toilet is. After all, toilets have lids for a reason.

Why do people cover the toilet?

Toilet Lids Help Keep Your Bathroom Clean

Ease of use, habit and gender tend to guide your lid preferences. But those lids are actually an important part of reducing the spread of bacteria and were designed to help keep your bathroom clean.

Is it OK to let pee sit in the toilet?

It's totally safe to let your pee sit in the bowl, BTW

So we asked an epidemiologist to give us the scoop. “Just because you are grossed out by it doesn't mean that it is a health hazard,” says Brian Labus, PhD, MPH, assistant professor of public health at the University of Las Vegas School of Public Health.

Should you pee after each round?

It's always a good idea to pee after sex, particularly for women. Because women's urethras are shorter than men's, bacteria can enter easily and cause a urinary tract infection. When you pee after sex, it may help flush out bacteria from the urethra.

Should you flush the toilet after every pee?

People should still flush their toilets at least once a day. "Things like to grow in urine and after a while the chlorine will inactivate in the toilet bowl water. It will being to bubble away and things will begin to grow. The odor will increase so it can get disgusting, smell bad and stain your toilet," he said.

How do I keep my toilet bowl fresh?

Just flush in the morning. Use an automatic toilet bowl cleaner. It will clean your toilet automatically from the inside out with every flush, eliminating and preventing the growth of bacteria and hard water stains on it's journey to the bowl. Also, it will prolong the time your toilet stays clean.

How do I stop my toilet bowl from smelling like pee?

Deep clean the toilet
  1. Scrub the toilet inside and out, top to bottom. ...
  2. Remove the toilet seat completely to really get the hinges clean.
  3. Use a store-bought toilet cleaner on the inside of the toilet and scrub. ...
  4. Finish up by sanitizing your throne.

Can you put laundry detergent in a toilet tank?

It isn't a good idea to put laundry detergent into the toilet tank. The detergent can cause clogs in the toilet and pipes. Additionally, if the home has a septic system, the laundry detergent will devastate the beneficial bacteria, reducing the effectiveness of the septic system.

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