The LakeAir Exel Z Ideal for rooms up to 15′ X 15′, the Excel Z removes 97% or more of airborne particles as small as 5 microns and traps them in its powerful filtering system. The LakeAir Excel air cleaners clean indoor air throughout your home and office, using less energy than a 75 watt light bulb. The Excel model comes with a MERV 8 Media filter that can be replaced. The Excel Z is available in wood grain, black and white. Additional special order colors available upon request. The Excel Z model comes with a disposable media filter.