For those who are concerned about airborne transmission but can't ventilate because it's cold.

It's okay to keep the window closed. The AT254 filter continues to remove viruses from the indoor air, keeping it clean at all times.

【Recommended for those who...】 ■ Want to ventilate but can't... ■ Have reduced the frequency of ventilation ■ Are worried about airborne infections... ■ Want to spend time with peace of mind The AT254 filter is an air conditioning filter that is impregnated with a liquid agent (AT254) effective against 254 types of viruses and bacteria. (*AT254 has been proven to have a 99.8% antiviral effect against the latest viruses) Utilizing the air conditioner's circulation function, it collects viruses in the room onto the filter and removes them completely. Even in winter when ventilation is difficult, it is possible to continuously deliver clean air. Furthermore, the filter is meticulously designed to ensure that warm air does not weaken when attached. As a result, it maintains a comfortable space without compromising the heating function. 【Just by attaching it to your air conditioner...】 ◎ You can spend time with peace of mind even in environments where ventilation is difficult ◎ You can easily implement infection control measures at a low cost ◎ The deodorizing effect eliminates unpleasant odors indoors ◎ The frequency of air conditioner cleaning is reduced, saving costs *For more details, please refer to the PDF document or feel free to contact us.

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