0.5L Mini Tank Dive Scuba, 5-10 Minutes Underwater Breath Device Portable Diving Cylinder Oxygen Tank Kits, Reusable Pony Bottle, Underwater Diving Breathing Training, 10M Deepest Water (GREEN)

I purchased the GOYOJO mini scuba tank mainly for snorkeling and emergency backup during shallow diving trips. The build quality is solid, and the fluorescent green design makes it easy to spot underwater. It’s lightweight, portable, and the included carrying case is a nice touch. The 0.5L tank gives me about 8–10 minutes of breathing time at shallow depths, depending on how calmly I breathe. It’s perfect for short underwater tasks, surface practice, or emergency situations—not meant for extended dives. Filling it can take some effort if you’re using a hand pump, so I recommend a compressor for ease and speed. The pressure gauge is accurate and easy to read. Overall, it’s a great tool for casual divers or as a backup air source. Just be sure you’re aware of its limitations and use it within recommended depth and time guidelines.

For anyone who is very into underwater diving this is a must. This is a game changer. It took me a few minutes to kind of understand how to use it how to implement everything used implemented with the manual and everything is free very straightforward very easy to use and understand and then everything about this. It’s very functional. The size is very compact too. The qualities is amazing. It feels like tight tear like it feels like $1000 item but it’s just for a cheaper price I’ve used underwater it’s just so nice to see the water life underwater using this item especially since I already bought the mask so it’s it’s also very nice.

Poorly made, arrived out of adjustment, shoots water into your mouth whenever you take a breath. Wasted a lot of time finding out that this sucks. Not worth buying.

Okay so I bought this mini scuba tank kinda just for fun at first. Didn’t think I’d get much out of it but turns out I use it way more than I thought. First dive with it was just in the pool to test it out and I was shocked how long it actually lasted. I think I got like 10-ish minutes? I wasn’t even rushing. It feels pretty solid too. The materials don’t feel cheap and the pressure gauge is easy to read underwater. I did have to watch a video to figure out how to fill it the first time but once you get the hang of it, it’s simple. Used it now for a couple lake dives and it’s been great for quick underwater work or just messing around. Not for deep diving or anything serious but for what it is... it’s honestly perfect. If you’re thinking about getting one... do it. Just don’t expect to stay down forever... lol. But for short dives or training? It’s kinda amazing.

My brother and I both bought these, super fun and work well. I did have to use teflon tape to seal the air on the lid. Other than that it worked great 👍 I would recommend the electric pump because the hand pump takes forever. You also get about 8 minutes under water if you are conservative with your breathing.

This mini dive tank has been an absolute lifesaver for my dive services business. Often, it takes longer to suit up than to complete the actual job, but with this mini tank, I can dive in quickly and take care of smaller tasks in no time. It’s extremely easy to use and feels almost weightless in the water. While you do need to inhale a bit harder through the regulator, it's not really a problem once you're used to it. One thing to note is that you'll need an adapter to fill it from a regular-sized tank or a compatible compressor. I personally used the adapter, and the process was quick and hassle-free. Overall, highly recommended for anyone needing a lightweight, convenient tank for short dives!!

After being used once, the pressure can no longer be maintained and will be automatically released if more than 1000 of compressed air is injected.

This was something my son wanted for his birthday. So many he had saved in his wishlist. I am so happy that I was able to get him this. His birthday isn’t till December, but it’s summer and an early gift was needed. It is extremely easy to figure out how to use and also how to refill. The product is high quality and worth the money.