That’s an excellent question. Plenty of air purifiers air cleaners have activated carbon filters to help remove chemicals, odors, smoke, etc, and sometimes it’s hard to know if it’s still working or not or exactly when you need to change them. The manufacturers usually offer a suggested time frame for changing the filters, however state that how long an activated carbon filter lasts really depends on the amount of pollutants in the area, that is a little confusing.
A good principle is to change out all filters, coconut shell charcoal powder once annually, particularly when you’re really responsive to indoor air pollution. If you’re extremely sensitive, don’t take a risk-alter your filters at any time symptoms even commence to reappear.
For the remainder of us that could be unable to know if we’re really sensitive or not, yet still want a better concept of just how long our activated carbon/charcoal filters last and really when you ought to change them, there exists a way to ‘test’ it-by how good it is actually still removing odors and smells.
Military grade carbon in gas masks, as well as in good carbon/charcoal air purifier filters work by absorbing or attracting airborne chemical residues in the air. And also since odors and smells are available from airborne chemical molecules and residues, if the activated carbon/charcoal filter inside your air purifier is still working well, it will be able to mostly or completely remove an odor or smell in a question of minutes, right?
So, one method to ‘test’ your activated carbon/charcoal air filter is to put your air cleaner either in the kitchen after you’ve finished cooking, making coffee, or spray a little air freshener or cologne into the air surrounding you, then turn the environment purifier on high for 15 minutes roughly. If the smell goes away completely or is very noticeably reduced, the activated carbon/charcoal filter is most likely still doing its job trapping the airborne chemical molecules accountable for the smell.
You can test the filter again later and if it will take longer to eliminate the odors, that tells you the carbon is ‘filling’ up and also the air is needing to circulate through the air purifier a few more times to iiaqqj clean. True military grade carbon or charcoal filters (as in Austin Electronic home air cleaners) will do a more satisfactory job and keep going longer, but once you start to notice that odors aren’t going away like they employed to, that carbon filter is most likely ‘full’ and has to be changed to ensure that you and your loved ones remain breathing clean air.
It is very important, however, if you’re using an air cleaner for severe health issues, chemical sensitivities, or perhaps in a commercial application where hazardous airborne chemicals exist, to switch the carbon filters or at least install fresh bulk carbon on schedule or perhaps a little before to ensure than the air cleaner isn’t circulating more pollutants than usual because the carbon filter is saturated and simply blowing polluted air through the unit.
Additionally, there are various electronic and saturation / color change type chemical and VOC detectors as well as for any industrial applications where dangerous vapors or gases are present, we highly recommend using individuals with your air cleaner to inform you once the filter has stopped taking out the pollutants, or if air cleaner isn’t sufficiently removing them.