you can add a special hygienic additive and within 2 weeks just add any water to the tank, after 14 days just rinse the tank with the drum and they will be like new without any plaque and stink. the supplement costs 1000r, it lasts for 8-9 months. for economical ones, you can add a teaspoon of peroxide or dezavid and soak everything in citric acid once a month. if you put a humidifier on the battery, then the efficiency increases by 30-40% (it takes 350+ ml per hour at maximum power)
🌬️ Evapolar EvaCHILL - Ultimate Personal Evaporative Air Cooler, Humidifier, Portable Air Conditioner & Fan in Urban Gray
3 Review
🌬️ ROLLICOOL 10,000BTU Smart Portable AC with Alexa Voice Control - Cool Rooms up to 275 sq ft, WiFi & Bluetooth Connectivity, iOS/Android App
9 Review
🌬️ Hessaire MC18M Portable Evaporative Cooler: 1300 CFM, Cools 500 Sq Ft (Color May Vary)
9 Review
🌀 Quiet Portable Air Conditioner Fan with LED Light - Personal Mini AC Evaporative Cooler with 2 Fans, 3 Speeds - Small Desktop Cooling Humidifier Fan for Bedroom, Outdoor Use
6 Review