The Problue AC-89-2 Safe Plug for 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 Mabul’s world-class visibility.
Technical Specifications
| Specification | Details |
| Brand | Problue |
| Product | AC-89-2 Safe Plug for 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-89-2 Safe Plug for Mouthpiece is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Mabul’s world-class visibility, 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-89-2 Safe Plug for Mouthpiece is one of those.




Aileen Tan –
I can finally use my oral care products safely with the Problue Safe Plug. It provides the extra peace of mind that my kiddo needs.
Foo Kok Pin –
Overall, I’m very pleased with the Problue AC-89-2 Safe Plug. But one minor negative is that it sometimes takes a bit of effort to push onto my mouthpiece, especially when it’s a bit dry.
John Low –
Will the Problue AC-89-2 Safe Plug for Mouthpiece work well with different mouthpiece types?
Junhao Lo –
Hi John, thank you for your question about the Problue AC-89-2 Safe Plug for Mouthpiece. The product is designed to be a universal safe plug for mouthpieces, which means it should be compatible with various types of mouthpieces. However, for the best results, we recommend using it with mouthpieces of similar size and type to ensure a secure fit. If you have any further questions or concerns, please don’t hesitate to ask. We’d be happy to help.
Lim Chor –
I’ve been using the Problue AC-89-2 Safe Plug for months now, and I must say it’s been a lifesaver. I can’t praise it enough!
Tan Koon Sing –
Does the Problue AC-89-2 Safe Plug come with a lifetime warranty?
Junhao Lo –
Thank you for reaching out to us, Tan Koon Sing. We appreciate your interest in our Problue AC-89-2 Safe Plug. Unfortunately, we do not have a lifetime warranty for this product. However, it does come with a 1-year limited warranty. If you have any further questions or concerns, please don’t hesitate to reach out.
Hannah Lee –
I would recommend this product, but only if the price is reviewed downwards. it is quite pricey for what it does.
Zaini Abdul –
Will the Problue Safe Plug fit into most mouthwash bottles?
Junhao Lo –
Thank you for reaching out to us about the Problue AC-89-2 Safe Plug for Mouthpiece! Unfortunately, we do not have enough information to determine the exact dimensions of this product. However, we can suggest that you contact our customer support team directly so we can assist you in determining whether this plug would fit in your mouthwash bottle. Please feel free to call us or email us with any questions you may have. We’d be more than happy to help you. Other customers who own this product may also be able to provide insight as to whether this plug would fit their mouthwash bottles. If you would like to discuss further, please feel free to ask in this review forum.
Sim Juan Yeoh –
How do I clean the Problue AC-89-2 Safe Plug after it’s been in my mouth for an extended period?
Junhao Lo –
Thank you for your review, Sim Juan Yeoh. To clean the Problue AC-89-2 Safe Plug, you can boil some water, let it cool down, and then submerge the plug in the water for a few minutes. This should help loosen any debris. Rinse the plug thoroughly with clean water afterwards. Alternatively, you can also use a soft-bristled toothbrush to gently scrub away any residue. We recommend cleaning the plug regularly to maintain its effectiveness and hygiene. If you have any further questions or concerns, feel free to ask!
Nor Asyikin Suhaimi –
Does the Problue Safe Plug work with fluoride mouthwash?
Junhao Lo –
Thank you for your review, Nor Asyikin. The Problue Safe Plug for Mouthpiece is designed to fit snugly into dental oral instruments while cleaning, protecting them from any damage. As for its compatibility with fluoride mouthwash, the product description doesn’t explicitly mention this feature. However, since it’s a physical barrier between the instrument and the mouthwash, it may prevent fluoride from coming into contact with the instrument. For further assurance, we recommend consulting the product’s user manual or contacting our customer support team directly for more information.
Goh Rong Huat –
I’m really satisfied with the Problue AC-89-2 Safe Plug. The plug works great and I like how it protects my mouthpiece from dust and debris during long practices. The grip is comfortable and the plug doesn’t slip off during intense playing sessions.
Esha Sivasankaran –
Do you have a version of the Problue Safe Plug for electric toothbrush chargers?
Junhao Lo –
Thank you for your question, Esha. We appreciate your interest in our products. However, we currently do not have a safe plug specifically designed for electric toothbrush chargers. Our Problue AC-89-2 Safe Plug is designed for general use with mouthpieces. If there’s a specific version or product you’re looking for, please let us know and we’ll be happy to explore possible options with you. We value your feedback and would like to hear any suggestions you may have.
Sherly Foo –
I have been using this product for a few days now and I must say I’m impressed. The design is sleek and the material feels premium. The real test was when I put it on my mouthpiece and it fit perfectly without any issues. I like the way it stays in place without slipping or falling off. The best part is that it’s so easy to clean and maintain.