Citivisovd Air Filter Compatible with ALORAIR MERV-10 Filter PureAiro HEPA Pro/PureAiro HEPA Max Air Scrubber, 14.5x13.7x0.8(available for 770, 870, 970)-4Pack

To maintain its optimal performance. Economically and efficiently saving you money, meeting your air cleanliness needs throughout the year. We recommend replacing the filter every 3-4 months. | Compatible with 770, 870, 970 models | Easy to install with the same specifications as the original filter element can reduce dust in the air | Simply remove the older and dirty MERV 10 Filter and replace re-secure the cover, in just 1 minutes. | If you encounter installation or other issues, you can contact us within 24 hours for clarification. Thank you for choosing Citivisovd and have a wonderful day.