At present, most AHUs have a secondary filter which can be both an Digital air filter or bag filter that includes a filtration quality of about F9 or MERV13. This type of filtration quality not simply safeguards the AHUs and also provides cleaner air for your men and women. Variants https://andersonmswzd.timeblog.net/68335117/the-ultimate-guide-to-ahu-s