Honeywell seems to be keeping up the line of air purifiers to a certain standard of quiet with the Honeywell 18155 Silent Comfort True HEPA air purifier. As the name suggests, the most striking feature of this machine is the level of noise that it produces, which is almost zero.
For an air purifier to prove satisfactory, it has to be able to do several things and cleaning the air in the room is obviously at the forefront. This machine has a carbon pre-filter that is capable of trapping the large particles of dust including lint and any allergens. The pre-filter is supported by a 0.3-micron HEPA filter that churns out clean air at an impressive rate; it can clean the air in a 225-sq.ft room almost 5 times per hour. While the recommended size is limited at 225-sq.ft, it was stretched a bit to 300-sq.ft and the machine provided good results there as well albeit at a slower pace.
The HEPA filter in this machine is permanent requiring no replacement whatsoever. It can be cleaned with ease and it needs only around 2-3 cleanings every year, thereby lowering maintenance costs. The carbon pre filter can also be washed and together these filter almost all the bacteria and according to the manufacturer, 99.97% of dust particles. Though there is no concrete method to test these claims, it seems that the room is almost clear as crystal after running the machine.
A lot of air purifiers work by letting out a direct exhaust but the Honeywell 18155 has a no-draft mechanism and this part is bypassed. The result is a more efficient air purification process followed by the maintenance of temperature in the room, which can be controlled by the direction of the outflow. With the absence of the cold air exhaust, the room odors are also more efficiently processed as comparison studies with various machines showed. In addition to this, this air purifier features a fan speed control at three varying levels that can be used accordingly. The lowest level is great for using during the night if it is in a bedroom and if you are using the machine after long periods, the high power mode removes the dust particles easily in the room. The best part of this is that even at the high power mode, the fan doesn’t make too much noise and you can carry on normal conversations in the room.
While this machine is truly quiet and effectively purifies air to a large extent, there are some aspects of it that aren’t exactly very impressive. Firstly, there is no ionizer. Now, there are some studies that show that an ionizer is not advisable but if it can be used when nobody is in the room, the air gets cleaner. It should have been included with the option of separate use. The next aspect is the size. This machine is rather bulky and a tad heavy. There is a neat convenient handle on the top to ensure that you can carry it with ease but some of the slim competition wins in this aspect.
Overall, the machine is worth buying especially if you need relief from asthma or other allergies. The size is quite large but if you can have a 225-sq.ft room, it really shouldn’t bother you too much except when moving it around.
- Very quiet
- Effective cleaning mechanisms
- No-draft technology is very efficient
Pros
- No ionizer
- Bulky and a tad difficult to move around