I think you need to use used grouds, you can spread them out so they dry. They have hardly any smell left, but probably can absord odors just like carbonfilters as it is carbon rich. After drying you can spread them, leave them for a few days and brush or vacuum them out. I mostly have seen older people do that after a party at home when people had been smoking. I alsways have a batch of dried coffee grounds in my kitchen but for other use. But I do smoke at home and with a little ventilation and plants in my living room, the air is fine.BrentEvans wrote:That would be replacing one offensive smell with another. ......Think wrote:.
//edit: spreading around used coffee grounds can also nutralize smells. (maybe fresh coffee also works, I don't know)....
Used coffee ground are also a great fertiziler for plants, just like eggshells and bananapeels. I put the collected eggshelss in the bottom of my oven to sterilize them (salmonella), when I use it to bake something else. Just dry them and grind the eggshells and bananapeels to powder.