2-pack air filter factory replacement for vornado evap1, evap2, evap3, model 30, model 40, model 50, md1002 humidifier filter air filter factory authentic air filter factory brand product upc 842477101619. this non-oem replacement wick filter is made in the usa and designed, as well as distributed solely by air filter factory. this is not a oem product and is not covered under any manufacturer's warranty. the brand name and logos are the registered trademarks of their respective owners. any use of the brand name or model designation for this product is made solely for purposes of demonstrating compatibility.