The Carbon Media need to generally be changed in your Salon Pure Air I when the odorous fumes are not being sufficiently lowered. The frequency of changing this Filter might alter depending on various variables.
Replacement multi-density polyester panel final filter with activated carbon
Patented Carbon media "adsorbs" odors, pollutants
Edges are Self-Sealing
This Filter is used with model SPA2
UL Tested: Class 2 approved