3.Third layer: activated charcoal filter
Generally used to get rid of the odor in the air. Has been activated charcoal is considered one of the best material in addition to the odor, so a wide range of applications in recent years, the activated carbon in addition to taste the product, whether it is home, a refrigerator, for the most part it can play a good smell effect.
Cleaning: the filter layer can not be manually clean, after a period of time that it can be beat dust. Generally six months.
4.Fourth layer : HEPA filter
It is an internationally recognized HEPA best efficiency filters, HEPA initially applied nuclear research protection, now widely used in sophisticated laboratories, pharmaceutical production, atomic research and surgery that require high cleanliness of the place. HEPA by a very small organic fibers interwoven , a strong ability to capture particles , tiny aperture , adsorption capacity, high purification efficiency, and have water absorption, for 0.3 micron particle purification was 99.97% . In other words: Each 10,000 particles , only three particles can penetrate the HEPA filter membrane . Therefore, it is the effect of filtering particulate matter is very clear ! Filtered cigarettes if it is used , then the filter effect is almost 100% , because the size of particles in cigarette between 0.5-2 microns can not pass HEPA filtration membranes.
Cleaning : HEPA filters can not be washed under normal circumstances , the use of 6 months is recommended to replace one. (winx used HEPA filters can be washed, but the washing once for each of the filter will affect the results, it is recommended to clean in less than 16 times . )
Order more HEPA filters if you'd like to replace it regularly pls!!!