Using a water flosser in the shower

Which flossers can go in the shower

Only cordless, rechargeable flossers can be considered, and only if the maker says so. Look in the manual or on the maker's website for a statement that the unit is suitable for use in the shower, often backed by a water resistance rating such as IPX7. If the manual does not mention the shower, assume it is not intended for it.

Why mains units must stay out

Countertop flossers plug into the mains. In the UK, wiring rules keep ordinary sockets well away from baths and showers for good reason. Never take a mains appliance, a plug or an extension lead into a shower or near a filled bath.

Chargers for cordless flossers also stay outside the shower. Charge the flosser only when it is dry, in a safe spot as the manual describes.

Note:Never use a mains-powered appliance or charger in or near a shower. If you want a socket near a basin, use a qualified electrician.

How to floss in the shower

Water flossing in the shower follows the same technique as at the sink.

1. 1

   Fill the cordless tank with lukewarm water before you get in.

2. 2

   Fit the tip and choose the lowest pressure to start.

3. 3

   Place the tip in your mouth, then switch on.

4. 4

   Lean slightly forward and let water run out of your mouth.

5. 5

   Trace along the gumline, pausing between teeth.

6. 6

   Switch off, rinse the tip and empty the tank.

Shower water and hygiene

Do not fill the tank from the shower head unless the manual says that is fine. Use the same lukewarm tap water you would use at the sink. Empty the tank afterwards and let it dry with the cap open, as a closed, damp tank is more likely to collect residue. See how to clean a water flosser.

Some products sold as shower flossers attach to the shower pipe and use household water pressure. These are a different design; check how they are fitted and whether they suit your shower before buying.

Pros and cons of shower flossing

The main benefit is less mess, and for some people it makes daily flossing easier to stick to. The downsides are a smaller tank, which may need a refill, and less control because you cannot see what you are doing in a mirror.

If you want a large tank and wide pressure range, a countertop flosser at the sink may suit you better. See cordless vs countertop water flosser.

What about toothbrushes in the shower?

The same rule applies: only if the maker allows it, and never with the charger. See can you use an electric toothbrush in the shower?. If you are choosing a brush, our best electric toothbrush guide compares premium handles.

Compare premium toothbrushes →

Charging and storing a cordless flosser

Cordless flossers charge in different ways: some sit on a stand with a two-pin plug, others use a USB lead or a magnetic connector. Whichever type you have, charge it outside the shower, in a dry place, and dry the charging contacts before connecting it. If the charger has a two-pin plug, a bathroom shaver socket may suit it; check the charger label and the socket rating first. Between uses, store the flosser upright with the tank open to air. Avoid leaving it on a shower shelf where it is splashed every day, unless the manual says that is fine, as constant wetting can shorten the life of seals and buttons.

Frequently asked questions

Which Waterpik can you use in the shower? Check the manual for each cordless model. Waterpik describes some cordless models as suitable; countertop models are not.

Is it hygienic to floss in the shower? Use clean tap water in the tank, and empty and dry it after use.

Can I charge my flosser in the bathroom? Only from a suitable socket, such as a shaver socket if the charger fits it, and away from water. See charging from a UK shaver socket.

Does shower flossing replace brushing? No. The NHS advises brushing twice a day with fluoride toothpaste.