If you are on the lookout for an air purifier that uses true HEPA filtering while at the same time having the capacity to clean the air in medium to large sized rooms then the Whirlpool AP51030K might be a good choice. After running standard tests it comes highly recommended by a leading consumer magazine.
A charcoal filter differs from a HEPA filter in the sense that is meant to clean the air from odors as opposed to particles. It might therefore be a good idea to reflect whether you really need it as a charcoal filter also comes with a cost of course.
True HEPA means the AP51030K can stop 99.7% of particles up to 0.3 micron from passing through the HEPA filter. This is important to know as many manufacturers use a smaller filter which means the air might just flow around the filter thereby greatly diminishing the effectiveness of the air cleaner.
The filters of the Whirlpool AP51030K are quite large and some reviewers complain about the price of the replacement filters. Remember that quality comes with a price and while you might find cheaper replacement filters on the market for other brands of air purifiers they are likely to be not half as effective in cleaning the air.
The cost of a replacement filter is a very important thing to consider when purchasing an air purifier and this often reflects itself in the overall price, as mentioned before. Some of the more expensive models even claim filters that never need replacement or maybe once every 5 years. The filters of the AP51030K need replacement every 3 months for the carbon filter and yearly for the particle filter.
The Whirlpool AP51030K uses the Quiet Partner System technology designed to minimize the noise generated in the air purifying process for high quality air purifiers. The AP51030K can also easily be transported around your home by using the built-in handle.