AirFanta 3Pro vs Winix 5510

“It depends on needs. The Airfanta 3 Pro is a cool idea because it’s simple and highly effective, but it doesn’t come with features or a carbon filter stock. This is basically a mini CR box that does an excellent job on particulate matter in the air. Blueair makes a number of nice units if you’re okay with the ionizer. With their sale prices, they offer a combination of high performance with well tuned noise and efficiency. Clean Air Kits offer great particulate filter options for people seeking low sound levels, decent performance, and cheap maintenance costs. Winix and Coway make feature rich air purifiers that are mostly reliable and well designed, they also include carbon filters for VOCs. Levoit makes nice air purifiers at certain price points. The Vital 200S is under $200 and offers decent performance and energy efficiency.”

“$200 to cover 1,100 square feet isn't realistic, even if you planned to go the DIY route. Your best bet is to get a purifier you can place in close proximity to the litter box. If your aim it to stay under $200 for this one purifier, go for the Winix 5510. It's the slightly upgraded version of the 5500-2. It has a nice pelleted carbon filter which is great for odors. The 5510 is rated for 390 square feet based on its highest fan speed. You probably won't want to blast it 24/7 so let's bump the square footage down to 275 square feet I'd also recommend Rocco & Trixie litter box odor eliminator and switching litters.”