â?¼ This filter is the 1st stage pre-filter used in the AlorAir Cleah Shield HEPA 550 Air Scrubber.
â?¼ This MERV-10 Filter is made of synthetic fiber filter media.
â?¼ For MERV-10 Filters: Replace as necessary- we recommend change every 2-3 months.
â?¼ No modification of the AlorAir CleanShield HEPA550 Air Scrubber is required-users simply place the new MERV-10 filter and then re-secure the cover.