The ShakeFilter is for tap water you would rather not taste. Vapur’s activated carbon filters are made to soften the smell and flavour of chlorine in a reusable bottle, which makes them useful for a commute, a gym bag, or a trip where the tap is safe but unpleasant.

This pack holds three biodegradable filters. Each one is described as lasting up to 50 uses in a 500 mL bottle, over about 30 days.