HQRP 12x12x1 AC Air Filter can replace any standard furnace, HVAC or air conditioning filter. MERV rating of 8. Most common, perfect for basic residential or industrial use. Filters pollen, mold, and larger dust particles. Material is clean cloth filter. Filters should be replaced every 90 days, more often if you have pets, children, or allergy-sufferers at home. We recommend regularly replacing your filter to ensure your air stays clean and furnace works properly. - On your request, we can ship items UK, European Union Countries (except Italy, Malta, Turkey and Denmark), Australia, New Zealand, Japan and South Korea. Please, contact us prior purchasing items. It takes approximately 5-14 days for items to be delivered to specified countries. For some countries like Australia, New Ze.