• Filtrete 1900 Ultimate Allergen Air Filter
• 1900 Microparticle Performance Rating
• Attracts & captures 93% of large particles, such as mold spores, dust & pollen from air
• Attracts & captures microscopic allergens like pet dander, smoke & household dust
• Also captures particles that can carry viruses & odors
• Meets indoor air quality guidelines of American Lung Association of UMHHP
• For residential use only
• Lasts up to 3 months
• All sizes are 1 inch thick
• Made in the USA
• Weight: Approximately .77 pounds to 1 pounds depending on size selected.
• Shipping Dimensions: Approximately 20 x 14 x 1 inches to 467 x 1 x 1 inches depending on size selected.