IQAir Air Purifiers Vietnam – The world's most advanced ...
'The IQAir HealthPro 250 model was 'very good' at removing particles… That is so to say, after 15 minutes around 85% of all dirt particles of even 0.5 to 1.5 microns in size had already been removed. The [best of the other brands] only removed about half as many particles in comparable conditions.
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