Third, the filter method
In the field of air purification, the most economical and practical method is fiber filtration technology. Fiber can filter out most of the less than 10μm particles, mainly including plant fibers, polyester fibers, polypropylene fibers, and glass fibers. At present, the most used HEPA filter is glass fiber. The highest efficiency is 99.97% for 0.3μm particles.
Filtration is the most commonly used method of air filtration. Most air purifiers in the market use fiber filtration technology. Fiber filtration is very effective for particles smaller than 10 μm in the air, and smaller substances are easily adsorbed on the particles, so the effect of eliminating some bacteria and TVOC can be achieved while filtering the particles.
These accumulated on the fiber material, but a long time, like a garbage dump, become a hotbed of bacteria, resulting in secondary pollution. Therefore, the purifier filter should be replaced frequently, which is the biggest drawback of the filter method.
Fourth, the biological purification method
Many people prefer to plant plants such as spider plants, aloe vera, and green radish indoors after newly renovating their rooms. These plants can decompose some organic compounds during photosynthesis but they are extremely limited in quantity and require air circulation, which has a minimal effect on air.
Another is the use of cultivation of microorganisms, the use of biochemical principles of decomposition of organic matter, but also can play a role in purifying the air, but because the volume is too large, not suitable for use in residential environments.