The FilterTime RV Air Filter is designed to improve the overall air quality in your RV by capturing small particles in the air â mold spores, pet dander, pollen, dust, and more. Filtering these particles with polyester fibers before they enter your RV's air conditioner and recirculate throughout the RV is the key to improving in-RV air quality. FilterTime uses all American-made materials. From your home to your RV, FilterTime helps clean the air you breathe.• Allergen Merv 6 filters out pollen, mold spores, pet dander, and dust• Single-use filter installs easily with blue side facing up• Rated for 90 days of use• Discard when dirty or wet• Made in the USA• 6" x 14" AC filter replacement for Coleman Mach AC Filters out mold spores, pet dander, pollen, dust, & more Single-use filter installs easily Rated for 90 days of use | FilterTime Allergen RV Air Filter, 6" x 14" in Blue Made in USA