I have asthma and sensitivity to fragrances. Our lower level has a walkout, but we spend more time in the upper level which is at street level.
We've placed open boxes of baking soda in the lower level. My favorite trick is to air out the area when feasible to just get a good air exchange. When airing isn't an option, I put a fan on low to medium speed while I am downstairs. My thinking is that there is more air movement.
Last, but not least, white vinegar is used on both levels. I tuck a glass dish in the bottom of a plastic food storage container. Fill the dish half way with generic white vinegar and allow the liquid to evaporate naturally. No, we don't smell like a salad! Odors are kept under control without using oils and scented products. Afterall, I don't and can't shop in or purchase fabric from shops highly scented with candles or potpourie as the fragrance takes away my breath.
