Did some research based by timeline of youtube posting CrazyCap precedes Larq by a few years on Youtube 2019 ( https://youtu.be/6fixKxrDDzc ) before Shark Tank Epi. Tried out for my self. I would say 3 days tops without washing my bottle. Filtered water tastes weird after 3 days, but no smell while using & charging my cap. By 6 & 7th day refilling my bottle the water tasted weird, but didnt get me sick. I think this is perfect for drinking water from city water fountains or any purified, but potential risk filtered water sources. BBY763

I’m not sure if this thing really cleans? Sometimes it has a musty smell. The cap only stays charged for 2-3 days. It does keep water colder than my other bottle did.

Lightweight and durable. The uv sanitizer is a awesome feature. Especially with water sources being unfiltered aside from municipal sanitation

Great value self-cleaning bottle! I have self-cleaning uv-c bottles to compare and this is just as good as the more expensive ones!

A little pricey, but no complaints on the water bottle itself. Keeps drinks cold and has a solid build. With different water sources, the purifying uv light definitely comes in handy.