That’s a great question. Plenty of air purifiers air cleaners have activated carbon filters to aid remove chemicals, odors, smoke, etc, and quite often it’s tough to know if it’s still working or not or exactly when you want to change them. The manufacturers usually provide a suggested time frame for changing the filters, however state that how much time an activated carbon filter lasts really depends on the amount of pollutants in the area, which is a little confusing.
A great rule of thumb is to change out all filters, charcoal teeth whitening once each year, particularly when you’re really responsive to indoor air pollution. If you’re extremely sensitive, don’t take a risk-change your filters any moment symptoms even start to reappear.
For the rest of us that could not be able to tell if we’re really sensitive or not, but still want a better idea of how long our activated carbon/charcoal filters last and extremely when to change them, there exists a method to ‘test’ it-by how good it is actually still removing odors and smells.
Military grade carbon in gas masks, and then in good carbon/charcoal air cleaner filters work by absorbing or attracting airborne chemical residues inside the air. And also, since odors and smells also come from airborne chemical molecules and residues, if the activated carbon/charcoal filter in your air purifier remains working well, it must be able to mostly or completely remove an odor or smell in a matter of minutes, right?
So, a good way to ‘test’ your activated carbon/charcoal air filter is to put your air purifier either in the kitchen area after you’ve finished cooking, making coffee, or spray a little air freshener or cologne into the air close to you, then turn the air purifier on high for fifteen minutes or so. When the smell goes away completely completely or perhaps is very noticeably reduced, the activated carbon/charcoal filter may well be still doing its job trapping the airborne chemical molecules responsible for the smell.
You are able to test the filter again later and if it will take longer to get rid of the odors, that informs you the carbon is ‘filling’ up and also the air is being forced to circulate through the air purifier some more times to iiaqqj clean. True military grade carbon or charcoal filters (as with Austin Air purifiers) can do a better job and keep going longer, but once you begin to observe that odors aren’t disappearing like they utilized to, that carbon filter may well be ‘full’ and has to be changed to ensure that you and your loved ones continue to be breathing clean air.
It is crucial, however, if you’re utilizing an air cleaner for severe health problems, chemical sensitivities, or in an industrial application where hazardous airborne chemicals exist, to change the carbon filters or at least install fresh bulk carbon on schedule or perhaps a little before to make sure than the air cleaner isn’t circulating more pollutants than normal since the carbon filter is saturated and merely blowing polluted air with 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 exist, we strongly suggest using those with your air cleaner to let you know once the filter has stopped removing the pollutants, or maybe air cleaner isn’t sufficiently removing them.