Or has an HVAC system in each level of their house and changes both filters 4 times a year... like you're supposed to do.. that's only a few years of filters.
change 2 filters every 3 months no paranoia is common sense specially if you have pets. even during sumer i sometimes change them once a month jun-jul-aug
These are not rated for any particular pathogen blocking, nor should be expected to block more effectively by changing them out more often.
There are several reasons you could end up moving more or dirtier air through your filter and need to change it more often, or that you deliberately choose to leave your HVAC fan always-on sometimes to filter the air more, though usually people thinking about that, spring for more effective, far more more expensive filters but even with cheap ones it has the same effect for large particle size.
I got these, they are really thin! I didn't know they made filters this thin. I think they might be for commercial buildings in ceiling air handlers or something.
Comments & Reviews (17)
There are several reasons you could end up moving more or dirtier air through your filter and need to change it more often, or that you deliberately choose to leave your HVAC fan always-on sometimes to filter the air more, though usually people thinking about that, spring for more effective, far more more expensive filters but even with cheap ones it has the same effect for large particle size.
Thank you!