Keeping moisture is essential. Whenever you do not want to bring water or do not want to bring water, on-site filtration is the ideal choice. Grayl‘s GeoPress Water Purifier provides it. Combining electro-absorption media, ion exchange, and ultra-powdered activated carbon, its filtration system removes 99.9% of waterborne pathogens, such as viruses, bacteria, and protozoan cysts, pesticides, chemicals, heavy metals, and microplastics. Press every 8 seconds to provide 24 ounces. For clean drinking water, each replaceable purification cartridge can last 350 cycles or 65 gallons. Click here for more details about one of your best outdoor mate Grayl GeoPress Water Purifier.