Individuals who have difficulty due to pollutants in the atmosphere, even in their home, may benefit from a portable air cleaner. Not all are equally effective. Some only provide mechanical filters to trap particles while others are made to prevent bacteria, odors and gases. Before making a purchase, be sure to know the features needed or wanted.
The first variable to decide is the seriousness of the problem to be addressed. If one requires the cleanest atmosphere, he or she will need to choose a better unit to get the job done. Those who have problems with chemicals or asthma may require a different type device than those who have pollen allergy problems. Chemical allergies can be caused by any number of different compounds and some users have found the glue from a HEPA filter might cause reactions.
Be sure to consider the volume of the room to be treated. To keep the atmosphere clean it must pass through the filter several times every hour. Even if a machine uses the greatest of filters it cannot be effective in a room if it is too small. At a very minimum the device should provide two full exchanges every hour.
The location the device will be used is also important in determining the best choice. In bedrooms where noise can be a factor, a smaller unit that exchanges a minimum amount of air may be desirable. In family rooms where traffic is higher, the device should have a higher exchange rate.
Units barely meet the minimum requirements for a room will need to operate on the highest speed most of the time. However, if the consumer selects a more efficient device, it may be possible to turn the fan speed to a lower setting to allow quieter operation while still exchanging the appropriate number of times.
Some devices have built in sensors to monitor the particulate matter flowing into the intake. These units begin on high but switch to lower speeds as the number of particles decrease. Unfortunately, the current devices with this feature do not measure a large enough area to provide an effective operation of the system.
Critical measurements of the effectiveness of a unit include the actual number of exchanges offered each hour and the percentage of particulates removed during each exchange. The second number is called efficiency. Higher efficiency machines remove more particles each time the exchange takes place. The efficiency of the device is a better measure than efficiency of a filter. The HEPA filter removes all bout 0.03% of particles greater than 0.3 microns, however it can be installed on a machine that allows 50% of each exchange bypass the filter, reducing machine efficiency, causing a poor performance overall and not solving the problem
If breathing in one's own home becomes a problem, installing a portable air cleaner might help. Such devices can effectively remove pollutants. By selecting the correct device the occupant can improve the atmosphere in the home and may find it easier to breathe.
The first variable to decide is the seriousness of the problem to be addressed. If one requires the cleanest atmosphere, he or she will need to choose a better unit to get the job done. Those who have problems with chemicals or asthma may require a different type device than those who have pollen allergy problems. Chemical allergies can be caused by any number of different compounds and some users have found the glue from a HEPA filter might cause reactions.
Be sure to consider the volume of the room to be treated. To keep the atmosphere clean it must pass through the filter several times every hour. Even if a machine uses the greatest of filters it cannot be effective in a room if it is too small. At a very minimum the device should provide two full exchanges every hour.
The location the device will be used is also important in determining the best choice. In bedrooms where noise can be a factor, a smaller unit that exchanges a minimum amount of air may be desirable. In family rooms where traffic is higher, the device should have a higher exchange rate.
Units barely meet the minimum requirements for a room will need to operate on the highest speed most of the time. However, if the consumer selects a more efficient device, it may be possible to turn the fan speed to a lower setting to allow quieter operation while still exchanging the appropriate number of times.
Some devices have built in sensors to monitor the particulate matter flowing into the intake. These units begin on high but switch to lower speeds as the number of particles decrease. Unfortunately, the current devices with this feature do not measure a large enough area to provide an effective operation of the system.
Critical measurements of the effectiveness of a unit include the actual number of exchanges offered each hour and the percentage of particulates removed during each exchange. The second number is called efficiency. Higher efficiency machines remove more particles each time the exchange takes place. The efficiency of the device is a better measure than efficiency of a filter. The HEPA filter removes all bout 0.03% of particles greater than 0.3 microns, however it can be installed on a machine that allows 50% of each exchange bypass the filter, reducing machine efficiency, causing a poor performance overall and not solving the problem
If breathing in one's own home becomes a problem, installing a portable air cleaner might help. Such devices can effectively remove pollutants. By selecting the correct device the occupant can improve the atmosphere in the home and may find it easier to breathe.
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