UV systems should be isolated and purged in advance of maintenance so as to stay away from publicity to elevated ozone levels and light-weight frequencies that could be hazardous for the eyes. RAH units appreciably decrease hearth possibility by eliminating ductwork to outdoors and suppressing grease deposits after the unit. https://cibsecpd47899.mybjjblog.com/not-known-facts-about-kitchen-extract-systems-41045482