Galasi mat media mtundu wapamwamba kwambiri ASHRAE ngati bokosi fyuluta mpweya.
• Ipezeka m'njira zitatu, MERV 11, MERV 13 ndi MERV 14 ikayesedwa molingana ndi ASHRAE 52.2.
• Imaphatikizira ulusi wagalasi wocheperako wopangidwa kukhala pepala lonyowa losalekeza. Ngakhale fyuluta iliyonse ya mpweya siyenera kugwiritsidwa ntchito mosalekeza m'malo okhutitsidwa, ma media media agalasi amapereka magwiridwe antchito apamwamba kwambiri kuposa zinthu zapa media zokwezeka kwambiri.