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  2. The best wireless earbuds for 2024 - Engadget

    www.engadget.com/best-wireless-earbuds-120058222...

    Best sounding wireless earbuds. Read our full Sennheiser Momentum True Wireless 4 review. Battery life: 7 hours, up to 30 hours with charging case | Water resistance: IP54 | Noise cancellation ...

  3. The best air purifier for 2024 - Engadget

    www.engadget.com/best-air-purifier-120040002.html

    The Core 400S claims a half-hour air exchange rate for a 1,000-square-foot room and combines the three main filter types — pre-filter, activated carbon and particle — into a single ring ...

  4. UE Fits wireless earbuds review: When the perfect fit isn't ...

    www.engadget.com/ue-fits-review-123038103.html

    The UE Fits earbuds are larger than many recent true wireless models. They protrude from your ears a bit, and their design is more antennae-like that the Bluetooth headset look Bose and Sony have ...

  5. Air purifier - Wikipedia

    en.wikipedia.org/wiki/Air_purifier

    An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics, and at reducing or eliminating second-hand tobacco smoke . The commercially graded air purifiers are manufactured as either small ...

  6. Air filtration in operating rooms - Wikipedia

    en.wikipedia.org/wiki/Air_filtration_in...

    High-efficiency particulate air (HEPA) filter is at least 99.97% effective in removing particles ≥0.3 μm in diameter (as a reference, Aspergillus spores are 2.5–3.0 μm in diameter). High-level HEPA filtration and increasing air changes per hour (ACH) can reduce particulate matter (PM) and bacterial concentrations in the operating room.

  7. Mila hands-on: Much smarter (and pricier) than your average ...

    www.engadget.com/mila-smart-air-purifier-hands...

    Aside from those issues, the Mila offers great value above and beyond a normal air purifier. Yes, it costs around $100 more than my existing (and not very smart) Coway AP-1512HH Mighty (which I do ...

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