Wonderful air purifier. Easy to pull right out of box and use after unwrapping filter and putting back in. Easy to follow instructions and overall easy function. Great way to clean up air in your home and small rooms. Makes air smell fresh and does take stink out of rooms. 3 different fan speeds or auto function. 3 easy to see lights to let you know if the air in your room is good or bad. Alerts you on top when replacement of filter needed. Very nice and sleek design.