I’ve definitely had those days where I walk into a room and just notice a stale, heavy smell that won’t go away. Maybe it’s leftover cooking odors from dinner, a damp smell from the bathroom, or just that general “lived-in” scent that happens when the windows have been closed too long. Usually, my first instinct is to grab a chemical spray or light a candle, but those usually just mask the problem for a few minutes. I recently found out that you can actually fix the air quality using two things almost everyone already has in their kitchen: salt and vinegar. It sounds almost too simple to work, but it’s a total game-changer for anyone who wants a cleaner-smelling home without spending money on expensive air purifiers or toxic aerosol cans that just fill the air with more chemicals.The reason this works is actually pretty cool and easy to understand once you break it down. Salt is naturally “hygroscopic,” which is just a fancy way of saying it loves to soak up moisture and little particles like dust or allergens floating around in the air. Vinegar is the heavy hitter when it comes to smells because it’s full of acetic acid, which neutralizes odors instead of just covering them up. When you combine the two, they become a sort of natural magnet for all the junk that makes a room feel stuffy. It’s also antimicrobial, so it can help keep bacteria and mold spores from hanging out in the air. It’s a great, non-toxic option if you have pets or kids and you’re worried about what they’re breathing in from those store-bought fresheners.Setting this up is probably the easiest household hack I’ve ever tried. You just need a glass or ceramic bowl—don’t use metal because the vinegar will eventually eat away at it—and about a cup of coarse salt. Sea salt usually works the best because of its texture. Pour about a half-cup of white vinegar over the salt and give it a quick stir. You then just place the bowl in the corner of the room where the smell is the strongest, like the kitchen after frying fish or near a pet’s bed. If you aren’t a fan of the initial vinegar smell, you can always add a couple of drops of an essential oil like lavender or lemon to give it a nice, subtle scent while it does the heavy lifting of cleaning the air.