What sensor do you have?
And what is the boxfan hack? I live near very bad wild fires and I need a much better filtering then my current grow filter which doesn't seem to work that well.
And what is the boxfan hack? I live near very bad wild fires and I need a much better filtering then my current grow filter which doesn't seem to work that well.
you just put a fan filter on the back, you can increase the amount of filters to not hurt the fan motor as much by making a triangle config or fan on top of 4 filters in a cube. fans are for air throughput not static pressure so real air purifiers have squirrel cage blowers
Literally just a box fan w/ a hvac filter taped to it. There are a few articles/youtube videos where people claim it works a lot better than a fancy air filter+fan device that costs $100s.
If you try it, just be careful it doesn't burn the fan motor and/or cause a fire.