What is the noise level for each Square metre type? ('Strong' when driving)
What is the HEPA filter grade? Can it filter both fine dust (PM 2.5) and ultra-fine dust (PM1.0)?
I change both the HEPA and deodorizing filters every six months. Is this replacement cycle okay?
Is it still okay to use the ION Cluster?
What is the persisting period for this product? And for how long can we use the BLD motor?
What are the electric fees like for a Square metre? (If used for 8 hours per day)
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