5 stars (4,919)

The Ultimate Chemical Free Ultrasonic Cleaner - That Disinfects 99.99% of Bacteria!

Sonic waves create thousands of microscopic bubbles in the water. The bubbles pop when they hit the appliance in the basin. This popping action gently (but effectively) lifts any plaque or debris from the surface, while the three powerful UV-C lights cause surface bacteria to be destroyed. This unique type of light disrupts the bacteria's DNA so it can't replicate.

  • Cleans retainers, aligners, dentures nightguards and more, all-in-one!
  • Goes from dirty to clean in under 5 minutes!
  • Dual-Action Technology, combines germ-killing UVC and Sonic Bubbles
  • EPA-Registered, Kills Micro-Organisms - Fast!
Featured in
30 Day
30 Day Money Back Guarantee
EPA Registered - Kills Micro-organisms
Warranty 2
1 Year Fresh Knight Warranty

Fresh Knight, a trailblazer in oral healthcare, is recognized for its eco-friendly, chemical-free cleaning innovations like the Fresh Case UV Retainer Case and the Sonic Fresh Ultrasonic Cleaner. Headquartered in New York, the company specializes in hygienic solutions for dental appliances, ensuring customer satisfaction with a hassle-free cleaning experience and a one-year product warranty. Fresh Knight's commitment to non-toxic sanitization and convenience appeals to a diverse and health-conscious customer base, reinforcing its standing as a leader in oral hygiene.

Sonic Fresh

The Sonic Fresh Ultrasonic UV Cleaner is an all-in-one cleaner for jewelry, retainers, aligners, and nightguards. Experience cleanliness at your fingertips.

How to Use

  1. Fill Tank With Water and Close Lid
  2. Plug In Sonic Fresh and Turn On
  3. Five Minute Cleaning Cycle Begins
  4. Remove Dental Device (Retainer, Mouth Guard, Dentures etc.)
  5. Unplug & Empty Water


6.61 x 5.67 x 5.59 inches; 1.21 Pounds

Fresh Case

Fresh Case is a compact, lightweight UV cleaning Retainer Case. Maintain your orthodontic devices safe and protected anywhere you go. This retainer container is slim, yet big enough to hold 2 pieces of upper and lower retainers or aligners. It's perfect to hold mouth guards and some dentures too.

How to Use

  1. Rinse retainer and pat dry. Place retainer in Fresh Case™️ and close lid.
  2. Press and hold on/off button for 2 seconds until light turns blue
  3. Wait 2.5 mins, open and enjoy a clean retainer!

Battery Life

Rechargeable - up to 25 uses per charge.

Product Dimensions

4.33 x 3.94 x 1.97 inches; 5.93 Ounces

Purple Chews

Purple Chews are a great way to check how well you are brushing...just chew the tablet to reveal where you missed, then brush again! These berry-flavored plaque disclosing tablets are safe and effective. Dental disclosing tablets are great for ensuring a proper clean when brushing. They're Certified, Food Grade and FDA Approved!

How to Use

  1. Brush Your Teeth
  2. Chew and Swish Purple Chew for 30 Seconds and Spit Out
  3. Look for Purple Marks
  4. Brush Any Purple Off of Your Teeth
  5. Show Off Your Pearly Whites