空气清洗技术于2021年1月在北京通过新冠病毒（活性）空气传播杀灭检测，杀灭率为99.99%.
       新冠病毒单体直径约100纳米，空气中任何直径超过100纳米的悬浮气溶胶或颗粒物都可成为它传播的载体。唾液飞沫是大号气溶胶，其颗粒直径多在1000-10000纳米之间，能携带大量病毒。唾液飞沫遇到扰动气流会分裂成N个小号气溶胶，当小号气溶胶的浓度达到一定程度或人在密闭空间停留过长时，仍有传染性。
       空气清洗技术能捕捉10纳米以上的气溶胶或颗粒物，其中10-700纳米段气溶胶有效率为71.3%，450-700纳米段固体颗粒物为98.5%。可见，不管是新冠病毒本身，还是其宿主，都在空气清洗技术可捕捉的范围之内。
       空气清洗技术把病毒及其宿主悉数捕捉或拦截到水里，再利用消毒剂把水里的病毒杀死，这两个过程同时发生并瞬间完成。因此，该技术有拦截或阻断病毒空气传播的作用。

       Air cleaner can kill Covid-19 from the air. In Jan. 2021, an experiment targeting to kill the living Covid-19 in the air was taken place in Beijing,99.99% had been killed.
       Covid-19 mono is in diameter about 100 nm, as the following picture. Thus, any particle or aerosol suspending in the air which is larger than 100 nm (PM0.1) could become the carriers of the hosts of the virus. The spittle is the larger size of aerosol range in 1000 - 10,000 nm (PM1.0-PM10) which can carry lots of virus. More the worst, spittle would continuously break out to numbers of smaller particles when it travels in the air.
       Air cleaning technology can captured particles or aerosols as small as 10 nm, in range 10-700 nm 71.3% effective, and 450-700 nm 98.5% effective. This means no matter the Covid-19 mono or its hosts are all fallen into the capture scope of the air cleaning technology. Virus is captured into the water of the air cleaner and be killed by the added disinfectant in the water.