[philliphaydon]

In Taiwan and Singapore, ball pits exist in like every single childrens in-door playground.

https://honeykidsasia.com/indoor-play-centres-in-singapore-f...

Few of these have photos.

Here's a couple of local articles about the mum drowning in the ball pit and the response from AirZone.

https://mothership.sg/2018/02/airzone-suspended-playground-s...

https://mothership.sg/2018/02/suspended-playground-net/