Yeah they are HEPA and according to the link below it’s good for 12-15 months https://alen.com/products/alen-breathesmart-75i-hepa-filter?variant=4042698329299

Yeah they are HEPA and according to the link below it’s good for 12-15 months https://alen.com/products/alen-breathesmart-75i-hepa-filter?variant=40426983292993 https://alen.com/products/alen-breathesmart-75i-hepa-filter?...