Austin HealthMate HEPA Air Filter (HEPA Black)

 (1 customer review)

Note: this review is for the Austin HM 400 Black model.

This purifier generates three different levels of white noise, depending on which of three settings you use. It's quiet on the first setting but the 2nd and 3rd highest are nice for masking background and outside noise when you need to sleep without interruption. Unfortunately, my HM 400 developed a minor rattle after about three years of moderate use.

I didn't use it every day, nor did I run it at top speed very often. I mostly used it at night while I was sleeping - and often I'd go for months without running it (e.g., during the warm months, I mostly relied on my fan and open windows for fresh air, and even when I used my air conditioner, I didn't usually use my air machine, save for this past summer).

I was going to send the machine back for warranty repair back when it was still only a few years old, but the noise was only intermittent and ultimately went away after a brief while. Meanwhile,...Read more