That’s a fantastic question. Plenty of air purifiers air cleaners have activated carbon filters to help remove chemicals, odors, smoke, etc, and often it’s hard to determine if it’s still working or otherwise not or exactly when you really need to modify them. The manufacturers usually offer a suggested time frame for changing filters, then again claim that just how long an activated carbon filter lasts really depends on the quantity of pollutants in the area, which is actually a little confusing.
An excellent rule of thumb is to change out all filters, charcoal powder once annually, particularly if you’re really sensitive to indoor air pollution. If you’re extremely sensitive, don’t take a risk-alter your filters at any time symptoms even start to reappear.
Throughout us that could not be able to know if we’re really sensitive or not, but nonetheless need a better concept of how long our activated carbon/charcoal filters last and really when you ought to change them, you will find a method to ‘test’ it-by how good it is still removing odors and smells.
Military grade carbon in gas masks, as well as in good carbon/charcoal air cleaner filters work by absorbing or attracting airborne chemical residues inside the air. And since odors and smells also come from airborne chemical molecules and residues, if an activated carbon/charcoal filter inside your air purifier continues to be working well, it must be able to mostly or completely remove an odor or smell in a question of minutes, right?
So, a good way to ‘test’ your activated carbon/charcoal air filter is to place your air cleaner either in your kitchen after you’ve finished cooking, making coffee, or spray a little air freshener or cologne in to the air surrounding you, then turn the air purifier on high for fifteen minutes approximately. In the event the smell goes away completely completely or is very noticeably reduced, the activated carbon/charcoal filter is probably still doing its job trapping the airborne chemical molecules responsible for the smell.
You can test the filter again later and if it will take longer to remove the odors, that tells you the carbon is ‘filling’ up as well as the air is being forced to circulate with the air cleaner a few more times to iiaqqj clean. True military grade carbon or charcoal filters (as with Austin Air cleaners) is going to do a better job and stay longer, but once you begin to see that odors aren’t going away like they used to, that carbon filter is most likely ‘full’ and has to be changed to ensure that you and your loved ones continue to be breathing clean air.
It is very important, however, if you’re employing an air cleaner for severe health problems, chemical sensitivities, or in a commercial application where hazardous airborne chemicals can be found, to replace the carbon filters or at a minimum install fresh bulk carbon on schedule or perhaps a little before to ensure than the air cleaner isn’t circulating more pollutants than usual as the carbon filter is saturated and just blowing polluted air through the unit.
There are also various electronic and saturation / color change type chemical and VOC detectors and for any industrial applications where dangerous vapors or gases can be found, we highly recommend using those with your air cleaner to inform you if the filter has stopped removing the pollutants, or if the environment cleaner isn’t sufficiently removing them.