With lightweight design and versatility, LifeStraw products are the perfect water filter for hiking and camping. Drink water straight from the nearest stream, puddle, or pond. It's the fastest way to filter - never pump or wait for chemicals to react again. Municipal water quality is not always optimal and may be contaminated with chemicals, chlorine, or microplastics. LifeStraw allows you to drink safely from water fountains at parks, airports, at school or tap water. It's also great for on-the-go commutes. Gives you peace of mind when abroad. LifeStraw removes bacteria and parasites (including Salmonella, E-coli, Giardia) and chemicals. Reliable and effective, LifeStraw products are the perfect accessory for international travel. Having a LifeStraw filter on hand allows access to clean, safe drinking water in the event of a natural disaster or survival situation. There are no batteries to replace and no moving parts to wear out, and LifeStraw products do not expire. Perfect for a vehicle or home emergency kit. 1. Take the filter out of the bottle and firmly blow all the water out of the filter. 1. Tak it dry for several hours/ overnight and finally put the filter back into the bottle. LifeStraw uses an advanced hollow fibre membrane technology. The membrane has microscopic pores that trap contaminants larger than 0,2 microns. Water is able to pass through but dirt, bacteria and parasites are bigger than the pores and get filtered out. Additionally, a carbon capsule absorbs chemicals like chlorine and pesticides. It's a highly efficient method of filtration. The flow rate of your LifeStraw will decrease, and then stop pulling water through once it reaches the end of its lifespan. You can increase the lifespan by cleaning the LifeStraw after each use. You can rest assured, that you will never drink contaminated water from a LifeStraw - when the water stops flowing through it, you know it is time for a new one!