expired
Ultrasonic Retainer Cleaner Machine
$9.00
$25
64% off
Amazon
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AmazonDeal Details
Amazon has Ultrasonic Retainer Cleaner Machine (Black or White) on sale for $8.99. Shipping is free with Prime or on $35+ orders.
Thanks to Deal Hunter phoinix for sharing this deal.
Available Colors:
Thanks to Deal Hunter phoinix for sharing this deal.
Available Colors:
- Matte Black $8.99
- White $8.99
- 42kHz Optimal Frequency for Deep Cleaning
- 3 Smart Timer Settings with Auto-Shutoff
- Refreshing Purple Light Cycle
- IPX7 Waterproof & Easy-Clean Design
- Library-Quiet Operation Under 45dB
Editor's Notes
Written by citan359 | Staff- About this Deal:
- Limited time deal, while supplies last.
- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- You can view Amazon's Return Policy here.
- Additional Notes:
- Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Ultrasonic Retainer Cleaner Machine (Black or White) on sale for $8.99. Shipping is free with Prime or on $35+ orders.
Thanks to Deal Hunter phoinix for sharing this deal.
Available Colors:
Thanks to Deal Hunter phoinix for sharing this deal.
Available Colors:
- Matte Black $8.99
- White $8.99
- 42kHz Optimal Frequency for Deep Cleaning
- 3 Smart Timer Settings with Auto-Shutoff
- Refreshing Purple Light Cycle
- IPX7 Waterproof & Easy-Clean Design
- Library-Quiet Operation Under 45dB
Editor's Notes
Written by citan359 | Staff- About this Deal:
- Limited time deal, while supplies last.
- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- You can view Amazon's Return Policy here.
- Additional Notes:
- Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
Community Voting
Deal
Score
+186
Good Deal
Bad Deal
Top Comments
"The Claim: The listing advertises a "42kHz Optimal Frequency". 42,000 Hz is well above the human hearing limit (20,000 Hz) and is the exact industry standard frequency for dental appliance and jewelry cleaning. If the product actually operates at 42 kHz using a transducer, the description is 100% technically and legally accurate.
The Catch ($8.99 Price Point): Legitimate piezoelectric transducers and high-frequency driver boards cost more to produce than basic DC motors. While $8.99 is common for closeout or heavily discounted import items, many cheap white-label products on Amazon falsely list "42kHz Ultrasonic" in the description when the box actually contains a $0.50 vibrating shaker motor.
If you purchase the unit and it fails the aluminum foil test (indicating it's just a motor shaker), then the product listing is deceptive marketing / false advertising under consumer protection guidelines.
"
Community Reviews
This budget retainer cleaner is mainly valued for basic ultrasonic cleaning at a very low price, with foil tests and picture reviews suggesting it does produce cavitation rather than just vibration. It also gets credit for handling jewelry and small items at home, and the purple light can run separately from the cleaning cycle. The main concerns are uneven performance, possible dead spots, and a flimsy build that may not last long. It also lacks a spacer or basket, so careful placement matters, especially with metal items and jewelry stones.
Common Questions (5)
AI-generated summary based on comments from the community. Updated ago
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44 Comments
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Our community has rated this post as helpful. If you agree, why not thank
Our community has rated this post as helpful. If you agree, why not thank
"The Claim: The listing advertises a "42kHz Optimal Frequency". 42,000 Hz is well above the human hearing limit (20,000 Hz) and is the exact industry standard frequency for dental appliance and jewelry cleaning. If the product actually operates at 42 kHz using a transducer, the description is 100% technically and legally accurate.
The Catch ($8.99 Price Point): Legitimate piezoelectric transducers and high-frequency driver boards cost more to produce than basic DC motors. While $8.99 is common for closeout or heavily discounted import items, many cheap white-label products on Amazon falsely list "42kHz Ultrasonic" in the description when the box actually contains a $0.50 vibrating shaker motor.
If you purchase the unit and it fails the aluminum foil test (indicating it's just a motor shaker), then the product listing is deceptive marketing / false advertising under consumer protection guidelines.
"
"The Claim: The listing advertises a "42kHz Optimal Frequency". 42,000 Hz is well above the human hearing limit (20,000 Hz) and is the exact industry standard frequency for dental appliance and jewelry cleaning. If the product actually operates at 42 kHz using a transducer, the description is 100% technically and legally accurate.
The Catch ($8.99 Price Point): Legitimate piezoelectric transducers and high-frequency driver boards cost more to produce than basic DC motors. While $8.99 is common for closeout or heavily discounted import items, many cheap white-label products on Amazon falsely list "42kHz Ultrasonic" in the description when the box actually contains a $0.50 vibrating shaker motor.
If you purchase the unit and it fails the aluminum foil test (indicating it's just a motor shaker), then the product listing is deceptive marketing / false advertising under consumer protection guidelines.
"
Only hope is that they're selling under cost to drum up good reviews before increasing the price.
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I feel like sharing this is almost like sharing a toothbrush with someone
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Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!