Your retainer isn't as clean as it looks.

Retainers, clear aligners, night guards, mouthguards, dentures and other removable dental appliances. If yours has a soft lining, bonded wire or anything your provider was careful about, check with them first. See compatibility.

It sends ultrasonic pressure waves through the water in the tank. Those waves form microscopic bubbles and collapse them again, thousands of times a second, everywhere the water reaches — including grooves, seams and textured areas that a brush is too wide to get into.

It's made for everyday care. A daily run when you take your appliance out is an easy habit to keep. Follow any schedule your dentist or orthodontist gives you.

No. There are no brushes and no moving parts inside the tank. The appliance sits in water and the water does the work, which is why there is nothing to scratch or wear down.

Yes. It's compact and runs from the included power cable. Empty the water before you pack it.

Pour the water out after each use, rinse the tank and let it air-dry with the lid open. Keep the base and the power connection away from running water.

No. The pod works with plain water — the mechanical action is the device's, not the tablet's. The tablets add the chemistry, which is the half water on its own does not do.

Tablets work chemically. They need time to dissolve, and they only act where the solution actually reaches. Ultrasonic cleaning adds mechanical action: sound waves form and collapse microscopic bubbles against the surface, including the grooves and seams a still soak tends to miss. Most people get the best result using both together.

Anything meant for soaking a dental appliance in water will dissolve the same way. Check what the tablet's own maker says about ultrasonic cleaners before you use one in the tank.

The Rinsa Ultrasonic Cleaning Pod, a power cable and instructions. Choose the Pod + Tablets set and a pack of 12 Rinsa Cleaning Tablets comes too, in its own parcel.

Shipping is free on every U.S. order, and estimated delivery is 7–12 business days. The pod and the tablets come from different suppliers, so they may arrive as separate parcels on different days. Shipping details.

You have 30 days from delivery, and we pay the return postage. The pod can come back used; tablets in unopened packs. Read the guarantee.

There is no separate manufacturer's warranty beyond the 30-day guarantee, so a fault comes straight to us. Inside 30 days it's a simple return; after that, tell us what has happened. Your legal rights are unaffected.

Through the contact page. Tell us your order number if you have one, and what the appliance is — most questions here turn out to be about a specific appliance rather than about the device.

Cleaning devices for dental appliances are generally eligible medical expenses. Pay as normal, then submit the receipt to your plan for reimbursement. Benefits cards may be declined at our checkout.

Eligibility is determined by your plan administrator rather than by us, so check with them if you are unsure. We cannot guarantee reimbursement.

Whichever delivery schedule you chose when you subscribed. It is shown on the tablets' product page beside each option, and again on the subscription in your account.

Yes, from your account. Skipping moves one delivery on; pausing stops them until you start again. Neither cancels the subscription.

Sign in to your account, open Subscriptions, choose the one you want to stop, and choose Cancel subscription. It stops there and then, and nothing else about your account changes. Signing in sends a six-digit code to the email address you ordered with — there is no password to remember.