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A retainer cleaner with a detachable tank, built to avoid the leak risk of fixed-tank designs

A detachable tank keeps water away from the electronics entirely, with 45kHz cleaning at a claimed 30dB — quieter than most cleaners in its class.

COSLUS built the C60 around a specific failure mode of fixed-tank cleaners: water working into the electronics over time. The tank lifts out entirely for rinsing, and the unit runs at a claimed 30dB with active cooling to avoid mid-cycle shutdowns.

£59.98 inc. VAT
Fast, FREE United Kingdom delivery on all orders £40 or more. Orders under £40 pay a flat £4.99 delivery.

COSLUS C60 ultrasonic retainer cleaner, 45kHz, detachable tank, white. Active cooling and a claimed 30dB operating volume.

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Fully Detachable TankLifts out for rinsing, keeping water away from the circuit board underneath.
Active Cooling SystemDesigned to prevent the overheating shutdowns that affect some fixed-tank cleaners mid-cycle.
Claimed 30dB OperationCOSLUS rates it roughly 50% quieter than typical ultrasonic retainer cleaners.

About this retainer & denture cleaners

COSLUS C60 Ultrasonic Retainer Cleaner Machine 45kHz

The C60's main design decision is the detachable tank: rather than a sealed unit where the whole device gets rinsed under the tap, the tank lifts out on its own, gets rinsed separately, and clicks back onto the electronics housing dry.

COSLUS frames this as a safety feature as much as a convenience one — a fixed tank that gets rinsed as a whole unit is the more common way water eventually finds its way into the circuit board, and separating the two removes that failure path entirely.

At £59.98, with active cooling to prevent the mid-cycle overheating shutdowns some cheaper 45kHz cleaners suffer from, and a claimed 30dB noise level, it's positioned as the practical, lower-maintenance choice in the retainer-cleaner range.

The details

Specifications

BrandCOSLUS
Frequency45kHz
Tank CapacitySee listing
CategoryRetainer & Denture Cleaners
Country of OriginChina

COSLUS C60 Ultrasonic Retainer Cleaner Machine 45kHz

£59.98 inc. VAT

Free United Kingdom delivery · easy returns · secure checkout

Got questions?

Frequently Asked Questions

How does the detachable tank actually work?

The tank lifts fully off the base unit for rinsing under a tap, then clicks back into place once dry — the electronics housing never gets wet directly.

Does it really run at 30dB?

COSLUS's own figure is 30dB, which it describes as roughly 50% quieter than typical ultrasonic retainer cleaners — worth treating as the manufacturer's claim rather than an independently verified measurement.

What does the active cooling system prevent?

Continuous ultrasonic operation generates heat in the motor; the cooling system is designed to keep it running through a full cycle without the automatic shutdown some fixed-tank units trigger when they overheat.

Is 45kHz strong enough for dentures as well as retainers?

Yes — 45kHz is a standard frequency across this category and covers dentures, retainers, night guards, mouth guards and small jewellery equally.

Is the detachable tank harder to use than a fixed one?

It adds one extra step (lifting the tank off) but removes the risk of water pooling around the base, which most users find a reasonable trade for the added durability.

What does delivery cost and how long does it take?

Delivery cost and an estimated timescale for your address are calculated at checkout, before you pay. Free UK delivery applies over the qualifying order value.

Can I return this if it is not right for me?

Yes — return it unused, with the original packaging where possible, under our returns policy for an exchange or refund.

The complete guide

The most common way ultrasonic cleaners actually fail

3 min read Sonique

It's rarely the ultrasonic transducer that gives out first on a cheap cleaner — it's water ingress. A fixed-tank design that gets rinsed as a single unit relies entirely on seals staying intact over months of daily use near a sink, and once water reaches the circuit board, the failure is usually sudden and unfixable. A detachable-tank design like the C60 sidesteps that specific risk by never letting the electronics housing get wet in the first place, which matters more for long-term reliability than the headline frequency number most listings lead with.

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COSLUS C60 Ultrasonic Retainer Cleaner Machine 45kHz £59.98