Comment by asdefghyk
1 day ago
RE ".....if the particulate level gets high when cooking ....." What is the particale counter level you use ? The number ? Just curious.
1 day ago
RE ".....if the particulate level gets high when cooking ....." What is the particale counter level you use ? The number ? Just curious.
If over 100 ug/m3 for 2 minutes, turn on, if under 10 for 10, turn off. If someone's cooking, there is a very predictable spike that peaks in the low hundreds and then decays (super-) exponentially. It was surprising to see how long it takes to get back to ambient. I think you'd have to cook a steak with the stove extractor off to hit 1000 and our hard-wired smoke alarm would definitely be going off. I have no idea how absolutely accurate the SEN55 is, but the background level is usually below 5. I don't live in a particularly polluted place, so that seems reasonable. NOx is almost always zero.