smoke absorber high carbon absorb filter long service life span ESD ... many people getting headache, faint and so on. Use 493 smoke Absorber can remove toxin gas quickly and efficiency to proof ... .Adopted double roll axis, rotate stable, low noise. Specifications BK493B SMOKE ABSORBERPower supplyAC220V 50HZ/AC110V 60HZpower consumption30WDimension(W)220×(H)270 ...