What 's the meaning of HEPA?

HEPA is an acronym of High Efficient Particulate Air.
To qualify as true HEPA by US government standards,
an air filter must remove 99.97% of all particles greater than 0.3 micrometer from the air that passes through.
(Particles smaller than 0.3 microns are still trapped by HEPA filters but effectiveness is reduced to less than 99.97%.)


HEPA air purifier help you stay in good quality air.

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