Most extraction systems give you a warning when there is a problem or if the filters are blocked. This generally is via a series of LED lights or a full display showing the filter status or alarm warning if the extractor is not working correctly. The operator’s manual is a good starting pointing to determine if there is an issue with your unit. Some companies post helpful FAQ pages on their website. If all else fails, call your local distributor or ask for assistance from your fume extraction system supplier.
—BOFA Americas
