When you buy any device, you have a couple of reasons for reaching such a shopping decision. When it comes to buying air purifiers, you need to define several things that are the clear reasons for buying this device.
For example, Philips air purifier costs a bit more, but these are generally long-term devices and easy for maintenance, but Phillips device can withstand the severe pollutants and allergens before going broke. Therefore, when you want to buy an air purifier, you should consider the following things.
Define your air pollution problems first to see if you really need this device. Okay, your air is fine, but what about allergies, asthma or smoke problems? Do you have pets that you keep indoor? Having pets indoor requires you to install air purifiers to keep all the dander, odors and hair away.
Also, if you have chemical intolerance, you might have problems with breathing every time that your house is cleaned. If you suffer from allergies, there is no way to live inside the house without this purifier. Therefore, consider your potential problems so you could know whether you need the purifier or not.
The next question matters the size of the device, as you need to buy an appropriate one. If you want to purify the whole room, the small device will not be enough for you, but on the other hand, if you need to filter only a small room, there is no need to buy a huge purifier with a lot of power.
You can get small, medium, large and whole-house purifiers. The small ones can filter smaller space up to 300 square feet, the medium ones are good for a room not bigger than 699 square feet, while marge ones can filter the air in space that is up to 1,900 square feet. The whole house models can filter spaces that are over 2,000 square feet, so make sure you know which one you need.
Another question you have to answer is to know where to place these devices, whether you should place in a bedroom, living room or somewhere else. Generally speaking, all the devices are made for one-room filtering, though the commercial models can filter the whole house.
Still, if you are not sure about the right place, you might want to get a model with wheels. This allows you to move the device from one room to another. Instead of buying multiple devices, get a one and move it around your house to filter the air in every room.
The maintenance is not a big deal as you can do it on your own, once you get familiar with the device. You will have to change HEPA filters, as these can last up to one year. Also, make sure to replace carbon filters, made of activated charcoal, which lasts up to 6 months. In the end, do not forget to replace pre-filters, as these should be changed every three months.