This is just a (very) short list: Heating, ventilation and air conditioning (HVAC) systems at home, work and stores use air filter to remove particles and sometimes odors/chemicals. read more
In a more abstract sense, filters are used in your computer/phone/tablet, to improve your search results. Most of us also use filters when we communicate with other people. That is, we may think about saying something snarky to our boss/spouse/kids, but we typically select something appropriate to the relationship. read more
Chemistry is a big part of your everyday life. We use filtration in your every day life for many purposes like tea, coffee and water also, but in case of water mostly we give emphasis for purification. read more