Coway Airmega Halo Review: Is Your Air Really Clean?
Coway Airmega Halo Review: Is Your Air Really Clean?
Coway Airmega Halo 评测：你的空气真的干净吗？
I cannot overstate the importance of having an air purifier that not only has enough power to actually purify a room’s air but also caters to your home’s particular needs. Pollutants like wildfire smoke, pollen, unventilated gas stoves, pet allergens, and even litter box odors can be potentially harmful additions to the air you breathe in your home. 我无法过度强调拥有一台空气净化器的重要性，它不仅要有足够的功率来真正净化房间空气，还要能满足你家庭的特定需求。野火烟雾、花粉、通风不良的燃气灶、宠物过敏原，甚至是猫砂盆的异味，这些污染物都可能对你家中的空气质量造成潜在危害。
Air purifiers from Coway have been a consistent top pick in our guide to the Best Air Purifiers for years, including the Coway Airmega Mighty2, which was released in March this year. Its predecessor, the Coway Airmega Mighty, had been our reigning “Best Affordable Air Purifier” for many years as well. I was excited to test the newest mid-size option built for medium to large rooms in Coway’s Airmega line, where it sits between the compact Airmega 50 or 100 and the higher-capacity 350 or 450 models. 多年来，Coway 的空气净化器一直是我们“最佳空气净化器”指南中的首选，包括今年 3 月发布的 Coway Airmega Mighty2。它的前身 Coway Airmega Mighty 也多年蝉联我们“最佳经济型空气净化器”的榜首。我很高兴能测试 Coway Airmega 系列中专为中大型房间打造的最新中型产品，它定位于紧凑型 Airmega 50/100 与高容量 350/450 型号之间。
Released at the end of August, Coway’s Airmega Halo is an affordable, lightweight air purifier that aims to deliver whole-room air purification at an accessible price point. Plus, its focus is on promoting a healthier night’s sleep with smart sleep features and quiet noise levels when in sleep mode. Coway Airmega Halo 于 8 月底发布，是一款经济实惠、轻便的空气净化器，旨在以亲民的价格提供全屋空气净化。此外，它还通过智能睡眠功能和睡眠模式下的静音运行，专注于促进更健康的夜间睡眠。
Overall, it delivers on most of its promises, but I ran into some problems during field-testing that made me question its sensor, and I wish it had more transparency with pollutant levels. 总的来说，它实现了大部分承诺，但我在实地测试中遇到了一些问题，这让我对其传感器产生了怀疑，而且我希望它在污染物水平显示上能更透明一些。
Simple Design That’s Maybe Too Simple
设计简洁，或许过于简洁
The Halo is only 9.7 pounds, making it lightweight and portable as far as air purifiers go, but it doesn’t have accessibility features like a top handle or wheels for easier moving. It has a small cutout in the back to grip, but because I have an upper-limb disability, moving it was awkward—I essentially had to hug the purifier to maneuver it, since I don’t have large hands that can easily grip the inlet. Halo 的重量仅为 9.7 磅（约 4.4 公斤），在空气净化器中属于轻便易携的类型，但它缺乏顶部把手或滚轮等便于移动的辅助设计。虽然背面有一个小凹槽可以抓握，但由于我有上肢残疾，移动它显得很笨拙——我基本上必须抱着它才能移动，因为我的手不够大，无法轻松握住进气口。
The purifier’s cylindrical design with a 360-degree air-intake structure draws in polluted air from all sides, making for fewer spatial constraints and more options for placement around the home. The inside of the machine uses Coway’s HyperVortex filtration system, which is an aerodynamic fan and duct design that Coway states is “inspired by eagle wings and golf ball dimples.” It uses wing blades to stabilize airflow, along with aerodynamic blades for powerful airflow for the generator fan and dimples to reduce air resistance for smoother air intake. 该净化器采用圆柱形设计和 360 度进气结构，可从四面八方吸入污染空气，减少了空间限制，在家中摆放更灵活。机器内部采用了 Coway 的 HyperVortex 过滤系统，这是一种空气动力学风扇和风道设计，Coway 称其“灵感来自鹰翼和高尔夫球凹坑”。它利用翼片稳定气流，配合空气动力学叶片为发电机风扇提供强劲气流，并通过凹坑减少空气阻力，使进气更顺畅。
Setup was extremely easy—I just needed to unscrew the bottom, remove the filter from the plastic protective covering, screw the bottom back on, and plug it in. There’s no need for a Wi-Fi connection, no app, and no remote. I started testing air purifiers earlier this year, and I’ve found I actually like having a connected remote, or better yet, an app that allows me to monitor air quality and adjust settings from afar. This model had neither. I also appreciate getting transparent numbers of pollutant levels directly from the machine rather than relying on colored lights, but this machine had the latter. 安装非常简单——只需拧开底部，拆掉滤网的塑料保护膜，拧回底部并插上电源即可。它不需要 Wi-Fi 连接，没有配套 App，也没有遥控器。我从今年年初开始测试空气净化器，发现我其实更喜欢有配套遥控器，或者最好是有个 App，让我能远程监控空气质量并调整设置。这款机型两者皆无。此外，我更倾向于直接从机器上看到透明的污染物数值，而不是依赖彩色指示灯，但这款机器采用的是后者。
Inside, the Halo has a cylindrical IEST-certified HEPA three-stage filter that claims to capture 99.97 percent of nano-sized particles down to 0.3 microns, but in my opinion the coolest feature is the MegaScan Particle Sensor, which continuously monitors the air in real time to detect smoke, fine dust, and allergens down to PM2.5. PM2.5, typically used as the standard measurement for air purifiers’ ability to measure and lower levels of microscopic allergens or pollutants, are tiny airborne particles that measure 2.5 micrometers or less in diameter. They are particularly dangerous because their size means they can penetrate deep into the lungs and cause serious illness like asthma, heart disease, and lung cancer. Halo 内部配备了圆柱形 IEST 认证的 HEPA 三级滤网，声称可捕获 99.97% 小至 0.3 微米的纳米级颗粒物。但在我看来，最酷的功能是 MegaScan 颗粒传感器，它能实时持续监测空气，检测烟雾、细微粉尘和低至 PM2.5 的过敏原。PM2.5 通常作为衡量空气净化器测量和降低微小过敏原或污染物能力的指标，是指直径小于或等于 2.5 微米的微小空气悬浮颗粒。它们特别危险，因为其尺寸意味着它们可以深入肺部，导致哮喘、心脏病和肺癌等严重疾病。
From the purifier’s top touchscreen panel, you can control fan speed, timer, and settings. On the quietest sleep setting, my decibel monitor app wasn’t even able to pick up the noise, as the fan wasn’t perceptible above the ambient noise of my house, even when I switched off all nearby appliances. Coway claims it’s 17 decibels in sleep mode, which I believe after not even being able to hear the machine in this mode. On the highest turbo setting, my decibel reader had it hovering around 75 decibels, which is akin to running a dishwasher or a vacuum. 通过净化器顶部的触摸屏面板，你可以控制风速、定时器和设置。在最安静的睡眠模式下，我的分贝监测 App 甚至无法捕捉到噪音，因为即使我关掉了附近所有的电器，风扇的声音也完全被家里的环境噪音掩盖了。Coway 声称睡眠模式下为 17 分贝，在这一模式下我确实听不到机器运行的声音，对此我表示认同。在最高涡轮模式下，我的分贝仪显示其在 75 分贝左右徘徊，这相当于洗碗机或吸尘器运行的声音。
As part of the Airmega Halo’s sleep features (in addition to whisper-quiet functioning), it has a low yellowish night light when in sleep mode, but this can also be turned off so the top panel is completely dark. It has a light sensor and automatically enters sleep mode, dimming lights and noise level when low light is detected. 作为 Airmega Halo 睡眠功能的一部分（除了静音运行外），它在睡眠模式下会发出微弱的黄色夜灯，但这也可以关闭，使顶部面板完全变暗。它配有光线传感器，当检测到光线变暗时，会自动进入睡眠模式，调暗灯光并降低噪音水平。
When in smart mode and it’s dark for more than three minutes, the machine will automatically enter sleep mode. If the pollutant levels are “good” for more than three minutes, the fan stops automatically to save energy. But if it detects pollutants, it will restart the fan. 在智能模式下，如果环境变暗超过三分钟，机器会自动进入睡眠模式。如果污染物水平保持“良好”超过三分钟，风扇会自动停止以节省能源。但如果检测到污染物，它会重新启动风扇。
It has four lights indicating air quality levels: blue for good, green for moderate, yellow for unhealthy, and red for very unhealthy. The colored lights show in a halo around the top of the machine. I found it sort of tough to distinguish between levels at a glance because this color-coding system differs from the US AQI standards of green for good, yellow for moderate, red for unhealthy, purple for very unhealthy, and maroon for hazardous. 它有四种颜色的灯光来指示空气质量水平：蓝色代表良好，绿色代表中等，黄色代表不健康，红色代表非常不健康。这些彩色灯光在机器顶部形成一个光环。我发现一眼很难区分这些级别，因为这种颜色编码系统与美国 AQI 标准（绿色为良好、黄色为中等、红色为不健康、紫色为非常不健康、深红色为危险）有所不同。
Mixed Signals
信号混杂
Hopefully, you come to WIRED Reviews because we actually vigorously test the gear we recommend. I didn’t just read the specs online and flip through the instruction manual—this machine was put through some intensely bad air to see if it could hold its own. 希望你来到 WIRED 评测是因为我们确实对推荐的产品进行了严格测试。我不仅仅是在网上阅读规格参数或翻阅说明书——这台机器被置于极其恶劣的空气环境中，以观察它是否能经受住考验。