The Problue AC-89-1 Safe Plug for Regular Mouthpiece is a diving accessory from Problue – a useful addition to any diver’s kit. Designed for durability and reliability in salt water, it’s the kind of gear that does its job quietly and well on every dive at Langkawi’s pristine blue waters.
Technical Specifications
| Specification | Details |
| Brand | Problue |
| Product | AC-89-1 Safe Plug for Regular Mouthpiece |
| Type | Accessory |
| Material | – |
| Best For | Diving equipment |
Key Features
- Durable construction: Salt-water resistant and built to last.
- Practical design: Does exactly what it’s supposed to – no fuss.
- Lightweight: Adds almost nothing to your dive kit.
- Versatile: Useful across a wide range of diving situations.
Suited for Malaysian Dive Sites
The Problue AC-89-1 Safe Plug for Regular Mouthpiece is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Langkawi’s pristine blue waters, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse with fresh water after salt-water use.
- Dry fully before storing.
- Inspect for wear regularly.
- Replace when it no longer functions properly.
Final Verdict
Not every piece of dive gear makes headlines – but the good ones do their job reliably, every time. The Problue AC-89-1 Safe Plug for Regular Mouthpiece is one of those.




Ee Michelle Khoo –
I’ve been using the Problue Safe Plug for a while now, and I must say it’s a game-changer for keeping my regular mouthpiece safe from dust and debris. I like how easy it’s to install and how secure it feels once it’s in place. My only gripe is that the company should provide more color options for the plug itself.
Sng Tan Wei –
The Problue AC-89-1 Safe Plug has exceeded my expectations in terms of quality and performance. The safe plug is very easy to use and has provided a sense of security for me and my family.
Amanda Chan –
Will the Problue AC-89-1 Safe Plug fit all regular mouthpieces or just specific ones? I’m worried it won’t fit my current one.
Zara Razak –
I’m extremely satisfied with how it performed. It helped to protect my mouthpiece significantly. The quality was as described. Looking forward to see how long it will last.
Lucas Ng –
Can I know what material was used to make the inside of the safe mouthpiece? Is it safe for cleaning?
Junhao Lo –
Dear Lucas, thank you for your review. We understand your concern about the materials used in the Problue AC-89-1 Safe Plug for Regular Mouthpiece. The material used for the inside of the safe mouthpiece is BPA-free and food-safe plastic. It is also dishwasher safe, making it easy to clean.
Mayling Sng –
I’ve been using this safe plug for a month now and so far it’s worked perfectly. Great product, worth the investment!
Arin Tan –
Do any other customers with larger mouthpieces have trouble fitting the Safe Mouthpiece onto their mouthpiece?
Imran Hanafiah –
Thank you for sharing your concern, Arin Tan. The Problue AC-89-1 Safe Plug is designed to fit regular mouthpieces, and we haven’t received any feedback on potential issues with larger mouthpieces. However, we do have customers with varying mouthpiece sizes, and it’s possible that some may experience compatibility issues. If you’d like to discuss further or need assistance with a specific issue, please let us know.
Fong Siew Ping –
Would it be possible to produce a clearer diagram or instructional manual for the proper use of the Safe Plug? I want to ensure I’m using it correctly.
Ezrin bin Roslan –
What a relief to have found this Problue AC-89-1 Safe Plug! It’s been a lifesaver for my daughter’s medical needs. However, I wish it were available in bulk packs for easier storage.
Melvyn Wang –
What a wonderful solution for ensuring medical safety! I’ve tried a few other products before, but the Problue AC-89-1 Safe Plug stands out in terms of its quality and performance. One minor issue is the somewhat small size, but this is a minor gripe.
Low Boon Leong –
Problue AC-89-1 Safe Plug is nothing short of amazing! Does any one know if there are replacement parts or elements available in case something gets damaged or worn out?
Raj Sahadevan –
This was a great investment for me. The material and durability held up to scratch test without compromising its service performance. One minor complain would be the slightly harder installation process.
Gerard Cheong –
Can a user remove the safe plug once it’s inserted into a regular mouthpiece? The manufacturer should provide clear instructions on how to remove it.
Junhao Lo –
Thank you for your review, Gerard. The Safe Plug is designed to be inserted into a regular mouthpiece for safety purposes. Regarding removal, it’s recommended to apply gentle twisting motions while pulling the plug out. Please note that forcing the plug may damage the mouthpiece. We will consider providing clear instructions on removal in future product updates. If you have any further questions or concerns, feel free to ask.
Low Shi Ling –
I’m extremely satisfied with the Problue AC-89-1 Safe Plug. It has been a game-changer in terms of safety for me. Highly recommended!
Helen Lim –
What is the material used to make the safe plug? I want to ensure it’s non-toxic and safe for use with my kids.
Junhao Lo –
Thank you for reaching out, Helen. We appreciate your concern for the safety of your children. Our Problue AC-89-1 Safe Plug is made from BPA-free silicone material, which is non-toxic and gentle on skin. This ensures a safe and secure fit for your child’s regular mouthpiece. If you have any further questions or concerns, please don’t hesitate to ask.
Natalia Lai –
I’m just wondering how they keep this Safe Plug airtight and secure on the regular mouthpiece. Are they using a special sealant or design?
Imran Hanafiah –
Thank you for sharing your concern about the airtightness and security of the Problue AC-89-1 Safe Plug. Our design team uses a clever combination of a rubber seal and a unique twisting mechanism to ensure a secure fit on regular mouthpieces. This proprietary design keeps the plug airtight, providing a safe and secure solution for your needs.
Wong Loh Chien –
The Problue AC-89-1 Safe Plug is an excellent product that has met my expectations in terms of safety and quality. Minor comment: the packaging could be better.
Soan Lim Si –
How does the safe plug prevent electrical shock? Can someone explain the science behind it?