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How to improve indoor air quality during Covid-19 Omicron spreading period?

Release time:2021-12-29 11:33:51    

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The 2022 New Year's holiday is approaching, but the new crownavirus: Omicron variant is spreading further in the world, and the number of infections continues to increase, casting a shadow over the festive atmosphere of the festival. The governments of many European countries have upgraded travel and social restrictions, strengthened the inspection of entry personnel, closed some public places, and promoted the vaccination. The government requires residents to stay at home as much as possible. People go to public places need to obey social distancing and wear masks.  Staying in a limited space for a long period of time, it is particularly very important to have a good indoor air quality. Let's discuss how to ensure indoor air quality during the pandemic.

1. Open windows frequently

Opening doors and windows regularly for natural ventilation can effectively reduce the number of microorganisms in the indoor air, improve indoor air quality, and adjust the microclimate of the room. It is the simplest and most effective method of indoor air disinfection. However, if the outside air quality is poor, especially in the northern regions, when the winter happens to be severely polluted by smog, it is not recommended;

2. Air purifier system

At present, the commonly used air purifiers on the market are composed of a fan and a filter device. The fan sucks in air. The filter device filters out various pollutants through adsorption, and then discharges the filtered air. So this kind of air purifier It is mainly suitable for removing one or more pollutants in the air. Here, the first thing to clarify is that the air purifier only adsorbs various pollutants on the filter, and the filter will become saturated after a period of time. If it is not replaced in time, the pollutants will be released into the air again, causing pollution to the air. And there is no information to prove that the filter has the effect of adsorbing or killing the new coronavirus.

3. Photocatalyst air sterilizer

As the most cost-effective air purification and disinfection device, photocatalyst has now been widely used in many fields of life.

Regarding the photocatalyst air sterilizer, it has three major advantages:

  • Sustainability: the catalyst reacts on the surface of the photocatalyst material, and the photocatalyst material itself will not change or lose, and it will continuously purify the pollutants under the irradiation of light, which lasts for a long time;

  • Safety: titanium dioxide was certified by the U.S. Food and Drug Administration (FDA) in 1968, and Japan approved titanium dioxide as a food additive in 1983;

  • Comprehensive: effectively degrade formaldehyde, benzene, toluene, xylene, acetic acid, ammonia, volatile organic compounds (TVOC) and other pollutants, and has a high-efficiency and broad-spectrum disinfection ability to decompose and decompose toxins released by bacteria or fungi. Harmless treatment.

LIVA air sterilizer&deodorizer, which is made by leading manufacturer: Evertree Co., Ltd. here is a brief introduction:

Work Mechanism:

Irradiated by the UV-A, titanium dioxide(TiO2) will generate the high reactive hydroxyl radicals (OH). The high reactive hydroxyl radicals (OH) accelerate the breakdown of any Volatile Organic

Compounds by destroying the molecular bonds. This will help combine the organic gases to form a single molecule that is not harmful to humans.

Meanwhile, the reactive species will cause deleterious alterations in cellular structure, microbial inactivation and possible destruction.

  • Purification

Triple filtration system : Primary filter, activated carbon filter, HEPA filter(H13).

  • Sterilization

The TiO2-based photocatalysts : Fitted with four sterilization modules, the air flow will be sterilized for 6 times.

The zigzag design of the sterilization chamber increases the reaction time between hydroxyl radicals (OH) and air pollutants.

The sterilization of Human Coronavirus can reach 99.99% in 1 minute.

  • Deodorization

Activated carbon filter : Absorbs formaldehyde,benzene, etc.

The TiO2-based photocatalysts : Oxidize organic and inorganic compounds.

  • TiO2-based photocatalysts

There are 4 units of sterilization module in LIVA air sterilizer & deodorizer, and the TiO2 and UVA are installed inside the modules. The zigzag design of the sterilization module greatly increasesthe chemical reaction time to ensure sufficient elimination. We have test report from certified laboratory in South Korea that the sterilization can achieve 98% in the first 30 minutes in

standard test space of 60m3.

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