The Desktop Air Cleaner provides compact air filtration and fume extraction. This device allows portability while supplying up to 80 CFM (prefilter and HEPA filter installed). The Desktop Air Cleaner can be used for general room air cleaning for medical and laboratory environments but can also provide fume, odor, or dust control for the individual user. This system offers low power consumption and variable speed control.Filters Available: HEPA Filter [up to 99.97% efficiency on particles 0.3 microns and larger], ASHRAE Filter [up to 95% efficiency on particles 0.5 microns and larger], ULPA Filter [up to 99.995% efficiency on particles 0.13 microns and larger], Activated Carbon, and specialty-blended filtration [i.e. acid gas, mercury, aldehyde, and ammonia].