If you're the type to place boxes of baking soda around your home to absorb obnoxious odors, you might give Moso Natural Air-Purifying Bags a try. They're small burlap bags full of 100% bamboo charcoal, which adsorbs¹ those odors and other toxins surprisingly well, without the need for cloyingly-sweet scents or chemical-laden burning candles that only mask the problem anyway.

The key here is to be realistic about the bags' deodorizing capabilities. They won't magically remove cigarette odors in smokers' homes, and you shouldn't expect they'll make a freshly-renovated room safer to move into quicker than you would otherwise.

That said, they are quite effective against:

• Pet odors (including litter boxes, though you should still clean those as normal)
• Lingering cooking smells
• Sweaty athletic gear
• Foods in the fridge
• Trash cans
• Car interiors (within reason; don't spill a can of gas in the trunk and expect miracles)
• etc

Each bag can last a year or two, as long as you set them outdoors in direct sunlight for an hour, once a month, to “rejuvenate” them.

Note: The company says that when the bags have run their course, you can simply cut them open and distribute the charcoal into your garden's soil, but I'm not sure that's actually a good idea if it's been absorbing things like “formaldehyde, ammonia, benzene and chloroform gases” as the they claim.

The bags come in a few sizes: 500g (ideal for an average-sized bedroom), 200g (great for car interiors and small closets), and 50g (for shoes, gym bags, etc).