How air pollution is destroying our health
The majority of people are anxious about air pollution and worried about they are exposed to toxic air pollutants.
What is PM2.5, and does PM2.5 cause allergies?
PM stands for particulate matter (also called particle pollution); the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke. PM2.5 means fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller. A pollutant (PM2.5) can deep into our lungs, increasing the risk of allergic diseases, such as asthma and allergic rhinitis.
How do air purifiers get rid of PM2.5 and remove the odor?
Air purifiers can remove odor by using a fan to cycle the air. When air passes through a filter, it will trap harmful pollutants. A diverse grade of filter can remove different particles in the air.
Air purifiers come with 2 common efficiencies, including removing particles in the air and eliminating the odor/TVOC in the air.
We use a HEPA high-efficiency filter to remove particles, while we use an activated carbon filter to remove odor and TVOC. The higher the MERV rating the better the HEPA filter is at trapping specific types of particles. The greater the surface area the higher the carbon filter is at removing organic molecules.
What is a HEPA filter?
Based on the regulation of international ISO29463, we can divide the filter into 3 categories: EPA(Efficient Particular Air)/HEPA(High-Efficient Particular Air)/ULPA(Ultra Low Particulate Air filter).
The HEPA filter has proven to be the most common filter on the market. HEPA 13 can actually remove 99.95% of 0.3µm particles. HEPA filters are typically made of fibers. A higher grade of filtering contains a higher volume of fibers. As the air pass through the fiber, the particles are captured on the fiber, creating a zone of clean, filtered air. The larger the particle, the more likely it is to get stuck in the filters, resulting in lower cleaning efficiency. Therefore, a HEPA filter should be changed regularly to keep filters working effectively. In general, our filters can last three to six months.
What is UVC LED? How does it kill the bacteria?
UV LED can be divided into 3 wavebands: UV-A(320~400nm), UV-B(280~320nm), and UV-C(200~280nm). UV-C is the highest energy portion on the UV spectrum. The ultraviolet light damages the structure of DNA and kills germs like viruses and bacteria.
Furthermore, UV-C effects on the human body vary depending on the length of exposure but can damage human skin and eyes.
Never look directly at a UVC lamp source, the UV-C light can actually hurt your eyes.
