| and more American homes are getting for | | | | lights that will notify the user that it is time to |
| themselves an air purifier. As pollution levels inside | | | | change the filter inside. Previously one always had |
| homes increase, people are left with little option. | | | | to keep an eye for that, and the replacement |
| As the sales increase, manufacturers of air | | | | was based much on guess work. The average |
| purifiers are also getting more sophisticated and | | | | domestic owner doesn’t have the |
| they are launching new and improved models of | | | | expertise to understand if it is time to replace the |
| purifiers. | | | | filter. With indicator lights, that shouldn’t be |
| The first innovations were with the technology. | | | | a problem anymore. |
| Initially we just had ionizers. But with the passage | | | | A similar innovation has been the introduction of |
| of time we have moved on to HEPA purifiers, UV | | | | the in-built infrared detector that can actually |
| purifiers and recently the ozone purifiers have also | | | | measure the amount of particulates which are |
| been introduced, which although, has come under | | | | suspended in air. Not all purifiers come with this |
| severe criticism from some sections. | | | | facility but some do, and with the passage of |
| As the technology is being innovated upon and | | | | time, most of them will have this enhancement. |
| more money going into the research and | | | | Generally when you turn on an air purifier it runs |
| development of these new filters, manufacturers | | | | at high speed. But after a few cycles of cleaning |
| are also shifting their attention to other aspects | | | | the air, it need not be at high speed and you can |
| of air purifier which are equally dependent on new, | | | | actually lower it to the medium level. Previously, |
| improved technology. | | | | the user had to do that. Now with these |
| Since air purifiers are being used domestically they | | | | detectors which can measure the particulates, the |
| now need to be as user friendly as possible. | | | | switch over happens automatically. So when the |
| However, that wasn’t really the case | | | | detector tells that the particulate level has |
| when they were initially launched. All they were | | | | decreased the purifier automatically switches to |
| able to do was to clean the air, and there their | | | | medium speed and when the particulate levels are |
| functionality stopped. But things are becoming | | | | at its minimum then the purifier shifts one level |
| better, as each manufacturer tries to innovate | | | | down to low speed. |
| and make their products better. | | | | This technology is still at its infant stage and it |
| Recently, air purifiers are coming with indicator | | | | needs further sophistication. |