Review on Eco 420 Personal Air Filter: Aluminum Air Purifier with HEPA and Carbon Filters for Superior Air Filtration. Eco-friendly Solution to Save Money and Reduce Plastic Waste. by Anna Green

Update - I downgraded my rating from five stars to four stars for the following reasons: These filters don't really last as long as smoke filters. I really like her, but I don't like her. I have no idea if I'm saving money because two refills cost the same as a regular smoker so it might be cheaper but I'm not sure. Another question, because it's perfectly cylindrical it rolls very easily and I can't tell you how many times it rolled off the table at the wrong moment and I had to run after it on the floor. Not funny. You need to add a bulge or smooth area to prevent rolling. Otherwise the rest of my review stands, this is a beautifully designed product. I've been using it for a few months now and it's just a great design. It is very well made and very easy to use. Replacement filters are a fraction of the cost of buying a new unit from competitors and less waste to the environment. Because it's metal, it's heavier than the main competitor's plastic case, so I still sometimes like to grab the smaller version of the competitor when leaving the house with a small purse. But at home and on the go, Eco Four Twenty is first and foremost.