OP BENEFITS OF REPLACING YOUR AIR FILTERS LONG LASTING RELIABILITY BETTER AIR QUALITY EASY TO INSTALL MAXIMUM DURABILITY HEALTHIER LIVING FILTER FITS WHIRLPOOL AP150, AP250 AIR PURIFIERS COMPARE TO WHIRLPOOL PART NO. 1183051K These Whirlpool filters are designed to get your air clean again. If you're an allergy sufferer, replacing your filters for everything in your house is a necessity! This are sure to help keep your home's air clean AND help improve your breathing. DON'T WASTE YOUR MONEY ON CHEAP KNOCKOFFS The days of dirty air coming from your air purifiers are over! We made sure to create the best air filter we could by making sure it is very simple to use and of course we wanted to make sure it is extremely durable. Air filters can be a pain when you remember to replace them so we made sure we did our best to make the experience easier for you. You may notice cleaner air in your home. You may also notice sore cheeks from constantly smiling about your purchase! This is a generic product designed and engineered in the United States by AF. This is not a Whirlpool OEM product and is not covered under any Whirlpool manufacturer's warranty. The Whirlpool brand names and logos are the registered trademarks of their respective owners. Any use of the Whirlpool brand name or model designation for this product is made solely for purposes of demonstrating compatibility.