{"id":4028,"date":"2022-01-25T07:21:00","date_gmt":"2022-01-25T13:21:00","guid":{"rendered":"https:\/\/housefresh.com\/?p=4028"},"modified":"2025-07-02T03:16:23","modified_gmt":"2025-07-02T09:16:23","slug":"alen-breathesmart-45i-review","status":"publish","type":"post","link":"https:\/\/housefresh.com\/alen-breathesmart-45i-review\/","title":{"rendered":"Alen BreatheSmart 45i review"},"content":{"rendered":"\n

Alen is one of the most respected names in the air purifier business. Based out of Austin, Texas, the company has been making top-of-the-range air-cleaning solutions for over 15 years.<\/p>\n\n\n\n

In fact, the Alen 350<\/a> was one of the first air purifiers I tested over a decade ago and is still a device that stands up to many modern appliances. <\/p>\n\n\n\n

Alen has built on this pedigree to develop powerful purifiers for both commercial and residential settings. Their most popular product line is the BreatheSmart range, which includes the Flex<\/a>, 45i and 75i<\/a>. <\/p>\n\n\n\n

The BreatheSmart 45i is the mid-size model in the BreatheSmart series, sitting between the 35i and 75i. <\/p>\n\n\n\n

I picked mine up for \u00a3279.99 ($375.67) on eBay in 2023, but it sold on Alen.com and Amazon for around $428 when I published this review. <\/p>\n\n\n

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How we test air purifiers<\/div>\n\n\n\n

Read our full testing methodology.<\/p>\n\n<\/div>\n<\/div>\n\n\n

The lowdown on the Alen BreatheSmart 45i<\/strong><\/strong><\/h2>\n\n\n\n
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“So\u2026 is the Alen 45i good for you?<\/p>\n\n\n\n

Considering only the initial price and top-speed CADR, it\u2019s difficult to argue that the Alen 45i will ever be a top budget pick.<\/p>\n\n\n\n

However, the Alen 45i does have some interesting benefits that could make it worth the extra price.<\/p>\n\n\n\n

It has the same quiet fan speed performance as some of the best mid-sized air purifiers and fairly low energy usage, which means running costs are also on par with some of the best models out there.”<\/p>\n\u2014Danny Ashton, Founder & Senior Writer<\/cite><\/blockquote>\n\n\n\n

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\n\n<\/path><\/svg><\/span>$429 AT ALEN.COM<\/span><\/a>\n\n\n\n<\/path><\/svg><\/span>$428 AT amazon<\/span><\/a>\n\n<\/div>\n<\/div>\n\n\n

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If you don\u2019t want to watch my full review of the Alen Breathsmart 45i, here are the 4 things I like and the 2 things I don\u2019t<\/p>\n\n\n\n

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What we really like<\/h4>\n\n\n
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<\/path><\/path><\/g><\/svg><\/span>Alen makes high-quality units that come with a lifetime warranty (but you need an active filter subscription).<\/span><\/div>\n\n\n\n
<\/path><\/path><\/g><\/svg><\/span>Great air cleaning performance even on quieter fan speeds<\/span><\/div>\n\n\n\n
<\/path><\/path><\/g><\/svg><\/span>Low energy costs compared to similar-performing units, which means low overall running costs<\/span><\/div>\n\n\n\n
<\/path><\/path><\/g><\/svg><\/span>Filter options at purchase (Pure, Fresh, Odor, Smoke)<\/span><\/div>\n\n\n\n
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<\/path><\/path><\/g><\/svg><\/span>A less intrusive overall sound, thanks to pink noise output <\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<\/div>\n<\/div><\/div>\n\n
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What we think could be better<\/h4>\n\n\n
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<\/path><\/path><\/g><\/svg><\/span>A higher purchase price than models from Levoit, Winix and Coway<\/span><\/div>\n\n\n\n
<\/path><\/path><\/g><\/svg><\/span>The lifetime warranty requires you to use OEM filters or have a subscription<\/span><\/div>\n\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n

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The BreatheSmart 45i currently retails for $419.00. It has a CADR test report on the EnergyStar Website, and the device was certified in 2018<\/a>.

For this dust CADR score of 207.9 cfm, we would expect it to clean the HouseFresh test room of all PM1 particles in a similar time to the Dyson Big and Quiet BP06, which managed to clean our test room in 30 minutes.<\/p>\n\n\n\n

We will also examine its effectiveness at lower fan speeds, as sadly, CADR only tests at top speed.<\/p>\n\n\n\n

This device has 0 ppb of ozone, which suggests it uses a low-power ionization process. According to Alen, it releases only 0.001 ppm. In comparison, the background level in the United States is 0.015 and 0.045 ppm. I do appreciate that Alen allows you to disable the ionizer for those who might have a sensitivity. When disabled, it will mean zero ozone, and I appreciate that it\u2019s easy to do via a button on the control panel.<\/p>\n\n\n

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