We have two Oval Air's in our shop, one by the front walkway of our shop and one in the lounging/ workspace area in the back. We chose to invest in Oval Air's because there is always constant foot traffic in and out of the shop, so the constant need to refilter the air is extremely important to us. To include, while it's serving it's purpose of being completely functional, we were able to choose covers that allows for it to be super blendable with the rest of our shop's furniture, making it sleek in it's design. As we keep our filter running, from when the shop opens to when it closes, it's important that we constantly change and update the filters every 2-3 months or so. We love how Oval Air purifiers, have the light indicator to let us know when it needs to be changed. From a bright green ring to a bright red, we immediately change it as soon as we notice it. I love to highly emphasize to my customers, that hospitality while they are present within my shop is super important to me. To add on within the experience of tasty foods, up to date music and delicious coffee, I also want to ensure that their health is also one of my biggest priorities as well. It is all part of overall experience and if I can adjust anything to make it make it better, I will absolutely do so. We absolutely love our Oval Air purifiers.