เครื่องฟอกอากาศในบ้าน ยี่ห้อไหนดี - An Overview
And two, it’s far more sensitive to filter lifetime than Various other purifiers: We’ve measured reasonably considerable fall-offs when tests 12 months-old filters. Blueair suggests changing the filter “every 6 months or so,” and it’s best to stick with that routine.