Please check the air purifier model ranges below to see if your air purifier is listed and to see how many pre-filters you will get out of the HRF-AP1. In terms of filter replacement/cleaning, it’s a little more involved. You have to turn little knobs to adjust the “calendar” and use that as a reminder as to when you need to do it. It seems to me like we’re seeing ground-breaking technology of the 1960’s in action.
As far as actual replacement goes, you flip the unit upside-down, unscrew a knob, and then pull the inside section out. The pre-filter wraps around the main one and is secured in place by velcro. honeywell humidifier It’s not as elegant as the 1st one, but it’s pretty simple nonetheless. Once you’ve replaced/vacuumed/etc, it just slides back in, you tighten the knob, and flip the unit back over again.
On the high setting, it barely broke our 50-decibel limit for comfortable conversation, sleep, or TV watching. On its four lower speeds, it measured a barely noticeable 41 decibels or less. Our first test unit ran for two years straight and was performing like new when it was discontinued for a newer version. The second one ran for four years straight, and it too was still working flawlessly when it was replaced (again due to design updates). That third model ran at our office for over two years straight while it was closed for the pandemic, during which time the office endured a small flood.
Pair this with poor air quality due to any number of environmental hazards, including wildfires, and you’re in for discomfort at best and serious health effects at worst. One way to ensure the air you breathe is as clean as possible is to set up an air purifier in your home. In fact, the Centers for Disease Control & Prevention honeywell purifier recommend doing so to keep wildfire smoke outside. Despite its negatives and costs, we strongly recommend the Honeywell PowerPlus True HEPA Air Purifier because it can effectively and efficiently remove particulate matter and VOCs from the air. It has minimal maintenance needs, and the filters are widely available.
If you try this hack, carefully seal the filter around its entire perimeter with clear, pro-strength packing tape—any gap would have let unfiltered air pass through, the same as on dedicated air purifiers. Doing all this may damage the fan’s motor, and we wouldn’t consider it to be a long-term solution for air-quality honeywell humidifier issues. But if you experience an air-quality emergency—say, regional wildfires creating a purifier supply shortage—it’s worth a shot. But it was louder, at 43 decibels, versus the Coway’s 39. It’s easy to forget the occasional obligation of replacing your purifier’s filters—so set a calendar reminder.
Air was noticeably freshened while the unit was running. It removed smoke from the air (and much of the smell) really well. The 2 main filters push out of the assembly (a top and bottom filter). Again, these appear to be ionizer plates made primarily of a solid material.